Overcrowding negatively impacts plants, as they cannot move to new environments or utilize resources. This experiment aims to explore the effects of crowding (population density) on plant growth and health. All living organisms require living space, and when living conditions decline, these organisms can move. Crowding causes environmental stress in many species and can affect their health. Understanding how crowding affects animals and plants can help distribute population or resources more efficiently.
Plants do best where they are not crowded, so farmers and nurserymen often thin or remove some seedlings. Lifted plants reduce height growth despite receiving higher irradiance than others. Lowered plants, on the other hand, grow taller. Narrower row spacings help mitigate crowding stress at greater plant populations.
Plants are living things that respond to changes around them, and the presence of sunlight is essential for their growth. The leaves of plants have chloroplasts, which are essential for chloroplasts to grow well. When plants have a small leaf area combined with high chloroplasts, they produce more shoot biomass.
The results show that plants in crowded stands regulate their height growth to maintain similar height to neighbors even when they have potential advantages in height growth. This science project is interesting because it shows how overcrowding can have a negative effect on plant growth, which can be applied to other ecosystems.
In an experiment, Radish plants were selected to determine the effects of crowding on plant quality. Overcrowded seedlings (Pot B) grow taller than non-overcrowded counterparts (Pot A). This study provides valuable insights into the effects of crowding on plant growth and health, and can be applied to other ecosystems.
📹 Seed Germination | Conditions affecting Germination Experiment | Plant Germination
Hola folk’s If you like our videos Pls comment & subscribe to our channel for more videos. Thank you …
Do plants grow better in a group?
Plants naturally group together based on their care needs, making it easier to tend to them and forming their own mini-biome. Grouping plants that thrive in similar conditions makes it easier to care for them and helps them form their own mini-biome. For example, placing humidity lovers close together can create a pocket of moisture for every plant in the group. Grouping plants based on light, direct versus indirect, and humidity is also important. For example, tropical plants prefer moist conditions, while succulents prefer less moisture.
What will happen if there are too many plants in one place?
Plants employ the process of photosynthesis to absorb and utilize carbon dioxide, which enables the generation of complex biomolecules. An increase in the human population can result in a reduction in carbon dioxide levels and an increase in oxygen levels. This is due to the fact that plants create a balance between carbon dioxide and oxygen.
What are the 3 effects of overcrowding?
Crowding can negatively impact quality of life, leading to increased physical contact, lack of sleep, privacy issues, and poor hygiene practices. Population density provides an objective measure of population density, but overcrowding refers to people’s psychological response to density. Definitions of crowding in statistical reporting and administrative purposes often depend on density measures and do not consider people’s perceptions. The American Housing Survey, conducted by the US Department of Housing and Urban Development, uses persons-per-room or persons-per-bedroom as commonly used measures.
The United States considers households crowded if there is more than one person per room, and severely crowded if more than 1. 5 persons share a room. The World Health Organization is concerned with overcrowding of sleeping accommodations as a risk for tuberculosis spread and has developed measurement indicators.
What are the disadvantages of overcrowding plants?
Crowding is a stressor that can have adverse effects on children and adults, particularly women, leading to a range of negative outcomes including poor social relationships, challenges in childcare, increased aggression, and withdrawal. The results of studies on density reactions are inconsistent, indicating the potential for negative effects.
What are the controlled variables in plant growth experiment?
This simulation explores the impact of environmental factors on plant growth and survival. It considers the independent variable, sunlight, dependent variable, and controlled variables like plant type, seed number, water availability, and time. The simulation is part of the Health in Our Hands collection and involves selecting plants with purple, lilac, or pink flowers, planting them in different rows with different sunlight amounts, and recording their height.
What causes poor growth in plants?
Plants can suffer from nutrient deficiencies due to conditions like acid or alkaline, dryness, and waterlogging. These conditions can cause symptoms like leaf yellowing or browning, stunted growth, and poor flowering or fruiting. If plants fail to thrive despite proper soil preparation, watering, and mulching, it may indicate a nutrient deficiency. Fruit and vegetables are particularly vulnerable, as are containerized plants and those growing in very acid or alkaline soils. Common symptoms include yellow or reddish-colored leaves, stunted growth, and poor flowering.
What are at least 3 factors affecting the growth of a plant?
Environmental factors such as light, temperature, water, humidity, and nutrition significantly impact plant growth and development. Understanding these factors allows for manipulation of plants for increased leaf, flower, or fruit production and diagnosing environmental stress-related plant problems. Light quantity, which refers to the intensity of sunlight, varies with seasons, with the maximum amount in summer and minimum in winter. The more sunlight a plant receives, the greater its capacity for photosynthesis, and understanding these factors can help in addressing plant growth and development needs.
What are the factors affecting plant growth experiment?
The experimental design takes into account a multitude of factors that influence plant growth, including seed variety, water availability, soil type, light, temperature, humidity, and other variables. Two variables, namely seed variety and water availability, will be employed in the experimental procedure.
What happens when plants are crowded?
Plants in a crowd compete for light, space, nutrients, and moisture, resulting in weaker plants that stretch more. When growing vegetables and annuals, it’s essential to cull some plants for others. This thinning is challenging for novice gardeners but is crucial for success. Once true leaves appear, start pulling to leave seedlings with space for the next stage. If this threatens to dislodge keepers, use scissors.
How does overcrowding of plants affect their growth hypothesis?
Crowding can negatively impact plant growth and production by reducing the amount of nutrients and light available to each plant. To research this issue, choose a specific plant and find the best conditions for its growth. Research on the effects of crowding on plants and gather information from books, magazines, or professionals. Start seeds indoors 6-8 weeks before the last anticipated frost date in your growing area, as starting seeds directly outdoors will limit yield. Obtain seed starting mix from local garden stores, such as Kmart and WALMART, which should contain peat moss to retain water during seed germination.
What does overcrowding lead to in plants?
Seed scattering is a vital process for the survival of plants, as overcrowding can impede the optimal distribution of nutrients and water, restrict light availability, and result in suboptimal growth due to the lack of adequate spacing.
📹 Why do we have crooked teeth when our ancestors didn’t? – G. Richard Scott
Explore the prevailing scientific theory of why crooked teeth and impacted wisdom teeth are recent developments in human …
Dr. Weston Price was a dentist who studied the jaws and diets of indigenous populations around the world. He found that Indigenous people that grew up eating their natural diet had almost always perfect dental arches, jaw width, straight teeth and no tooth decay. He found that changes in the diet were able to drastically descrease this kind of dental health within even 1 generation ( the kids of these people). This means the kids started eating a western diet (flour, sugar, canned, processed, etc) and developed the same problems, we nowadays have. NOW: while there may be a relation between chewing hard foods and dental health, he found the key in havin perfect development to be nutrient density, which is present in the indigenous diet and absent in the western diet.
This article makes so much sense. I had a eureka moment after perusal it. I think that eating CARROTS🥕during childhood could be effective at creating straight teeth. My parents both had crooked teeth and bad bites during adolescents and required braces to get straight teeth. Meanwhile me and 4/5 of my siblings developed naturally straight teeth. One sibling developed crooked teeth with a severe overbite and he had to have braces. We all ate the same diet except the sibling that developed bad teeth. One food that he never ate was raw carrots which the rest of us had as a daily snack.
Our jaws have evolved to be smaller/weaker given the changes in our diet. I remember a program on TV comparing medieval jaws with modern ones, and even in that relatively short time period noticeable changes have occurred. Slightly related – in the UK urban foxes have become less intelligent and weaker jawed than their cousins that remained in the country areas since scrounging food remains left over by humans doesn’t require the biological cost of a smart brain etc. That’s been recorded over the last 50 years or so.
When I lived in Nigeria straight, large teeth were very common. In fact the most common ‘flaw’ were gaps in teeth. I think Africans have larger jaws. My dad and all of his family have straight teeth no braces and wide smiles. My mother is French. She had braces as a child. All of her family have crooked teeth. My siblings and I were born and raised in the USA and UK. I’ve got braces and have one impacted molar. My sister had hers removed and braces. My brother needs braces for crowding on his lower arch
This is indeed a well known idea! I also experienced it first hand because I hated chewing and only ate soft baby food, requiring braces a bit. My sister who was more favorable to chewable foods has straight teeth. Also, it seems like the States has more problem with braces due to how their baby foods are processed and presented (like apple sauce). In Korea, not as many kids need braces because they are trained to chew some stuff, even like rice porridge, as a baby.
I am of mixed race and was told by one dentist once that the problem in my mouth (really buck tooth) is I had Native American teeth in and English jaw…meaning my teeth were big strong and very strongly rooted, but my jaw is small, and V shaped. My siblings didn’t get the English jaw, look very different, and have had very little issues with their teeth.
Actually Dr Weston Price a dentist from the 40s spent his life studying groups around our world who at that time still had actually perfect teeth and then when they started changing certain things in their diet and such, it completely changed within a generation. The work is very fascinating and very viable compared to this hypothesis.
I have a pretty small lower jaw & my teeth are really big. Had extremely crooked teeth with a bad overbite & had to get my wisdom teeth removed. Wore braces for 3 years in my teens & now I’m almost 30 & my lower teeth have shifted to become crooked again. This makes so much sense & is very insightful!
All four of my wisdom teeth came in, the top two came in fine, the bottom two where impacted. One came in FULLY SIDEWAYS, never emerged from the gum, and pressed against the molar next to it in such a way it developed a huge cavity. I had to get all five of those teeth removed, and it caused me massive jaw pain because I already have an overbite.
My dentist (who is also my uncle) always says that I have perfect teeth. He also said that children who still have their baby teeth should chew on something hard, but chewable. It will help stimulate the growth of a healthy permanent teeth. When I was a child, i used to bite the head/arm/gun/whole body off a lot of those little plastic soldier toys and in my country we eat sugar canes and a really thick and hard cookie. I really had an urge to bite those things and it felt soooo good when I did. That might explain why I have good teeth, even better than my brother, who didnt eat those things nearly as much. The funny thing is, now in my 29, i dont have that urge to bite.
Woahh this timing is blowing my mind🤯 My sister just had her upper wisdom tooth removed last week and x-ray reports showed that her lower wisdom tooth were growing horizontally inside the gum, which caused immense pain all of a sudden. Surgery in the next week to remove them. My mom then explained this theory of how our facial structure, since a few generations, had been changing and kind of shrinking in the jawline, causing all this to happen.
My brother and I were raised on a homecooked, not particularly processed diet, and both of us got our third molars in with no problems, never needed braces and have overall pretty good teeth. Now, it could be genetics, since neither of our parents or grandparents needed braces, or it could be the cooking we grew up with, or a mix of both.
I was on submarines in the US Navy. Before we could go to sea the first time, we all had to have their wisdom teeth removed. This was to prevent having to pull off of patrol to evacuate sailors with infected wisdom teeth. It’s so much of a problem that they preemptively remove everyone’s wisdom teeth.
I have extremely messed up teeth, so bad to the point that people gasp when I open my mouth. Some are crooked, some are chipped, and I have some growing in places where they definently shouldn’t be. Knowing that a caveman had better teeth than I ever will certainly feels… Interesting. I’m one of the lucky few who doesn’t care about the way my teeth look though, and so I haven’t undergone any procedures to fix them up. For every broken one I have a story to tell.
This makes so much sense for me. I’ve got a small head and mouth so I’ve got a small jaw. I’ve had so much work done to my teeth because I had too many, I’ve had several teeth out because of overcrowding. My wisdom teeth have replaced the rear molars…but I can’t complain about it because I’ve got veneers so that teenage trauma is gone thank the lord!
Makes sense. I was in karate as a kid, and one time I got a good look at the sensei’s knuckles. They were enormous. All the punching causes micro-fractures in the bone, and when it heals, the body makes the bone larger and tougher to compensate. I assume that’s exactly what happens to a very active jawbone, which then leaves more room for the teeth. Edit: Apparently that’s not quite it. See the replies for medical explanations.
My next door neighbor was a dentist, while I was growing up he’d instruct my parents how to care for my teeth especially for cavity and braces prevention. I’m in highschool and I haven’t had and hopefully won’t ever need braces. Both my parents have dental history so it’s not like it’s a genetic thing lol
I’ve been saying this for years! Both my parents and I have naturally straight teeth whereas my younger brother born in the states has more crooked teeth. After noticing the difference, I realized that bc baby food is so prevalent over here, our diet started off very differently and thus probably resulted in the slight morphology of our teeth positions
orthotropics is also an interesting aspect to this as much of proper mouth posture seems to be forgotten generationally. “mouth breathing” from what i remember can lead to a receding jawline as the skull develops and if that posture is not corrected, the plates will start to settle and make these shapes permanent.
I do know that generalized anxiety has also messed up my teeth. Because of anxiety i developed bruxism and I subconsciously grinded down parts of my teeth, thankfully it’s not that noticable but yeah, I definietely think stress, well being and environment has to do with it as well. Now that i know how to manage my anxiety it’s not a problem anymore, and I highly doubt our ancestors had constant stress like we do in modern times.
I’m one of those people who didn’t need braces and still has their wisdom teeth. My mom wasn’t so lucky. Has had a lifetime of teeth problems, and she now has them all yanked for falsies. I count myself fairly lucky, and I do what I can to not take it for granted (brushing, flossing, no sugary sodas, etc). I also make it a point to chew sugar free gum regularly to work my jaw muscles in the hope of keeping my muscles and bone strong.
We need to actively consider the effects of making everything so easy for us. Many things in life could still be easier, but our bodies evolved to not only deal with certain issues.. but to develop side-by-side with them. It’s why astronauts become weak when staying outside of Earth’s gravity for too long. Gravity may be a hinderence in some ways, but we evolved to exist under it.
Regarding the milling process I understand that small fragments of stone often infiltrated the the food and were consequently chewed. This practice led to the erosion of tooth enamel and caused tooth decay. I have also seen evidence of an abscess in the jaws of some skulls. However the perfect smiles of early man are still very impressive!
Fascinating. I was born with a mouth that was too small for all my teeth. Had major tooth crowding. Had to have my molars pulled when I was younger so my other teeth could spread out. My wisdom teeth came out when I was older and were impacted. Even today, I bite the sides of my cheek when chewing. My father and brother had the same problem. My mother’s teeth were perfect. But she had to have all her teeth pulled at 24 y.o. due to weak gums. But that was way back in the early 1920s where people didn’t have the dental care they have today.
I’ve read that the dietary change from paleolithic to agriculture ten thousand years ago coincided with changes in human bone structure. People on average became shorter and bone density decreased brought on by a lack of nutrition in plant foods/grains compared to animal nutrients. Weston A. Price travelled the world investigating teeth of various tribes including the Inuit. He was amazed that people groups who did not eat processed foods all had amazing health and good teeth.
This is interesting because I have had a very bad teeth clenching and grinding issue since I was a kid to the point where I had a dentist tell me at about age 13 or so that my teeth were as flat as tables. That being said my teeth all grew in straight and I even got my wisdom teeth in ok while my younger brother who didn’t have this issue had to have braces for a long time. Curious.
I’m a hunter myself and have some skull mounts of animals. I know that after 1 year of drying, teeth straighten out because the jaws dry out and shrink and there’s no soft tissue left holding them in their pre-drying position. Are they sure they’re looking at teeth in the true position they would have been in when people were alive?
One thing this article didn’t mention was survivorship bias. It makes sense that a lot of the fossil record would have nice teeth because the ones who did would be more likely to survive to maturity and pass on their genes. We know that in the past the state of one’s mouth could have a dramatic effect on overall health and was a quite common factor in one’s death.
I am surprised the talk didn’t mention the research of Weston Price a dentist who researched this very topic in the early 20th century. He travelled the World and noted that populations that ate traditional non-processed foods had better facial structures and almost no dental issues whilst people eating processed foods had lots of tooth decay and crooked teeth.
I never had a single issue with my teeth. They are straight and well-developed. They were sensitive in the childhood but they are not as sensitive now. This kept me away from sugary sweeties so I was focused more on something normal. I had not visited a dentist for 12 years now and I don’t think I have to, but I will get there someday just to make sure everything is well.
I’ve seen some people commenting about their tough teeth experiences, and believe me, I can relate. I had: 6 of my baby teeth surgically removed because they refused to fall; 5 years wearing braces; All 4 of my wisdom teeth surgically removed in one go, because there simply was no space for them; Two screws jammed into my upper gum, where I had to secure some rubber elastics around every night, not to mention the elastics I was already using, in order to align and expand my jaw; My case became a case study for my orthodontist; And, finally, I have to wear a set of retainers every night for the rest of my life, or all my hard work will go to waste
Good article but this is only part of the story, even if you get braces your teeth will re crowd overtime so the issue isn’t necessarily only jaw size. There is a pre-programmed mechanism called mesial drift that ensures that your teeth are always moving forward in your mouth. The diet with hard foods caused flexing of the jaws and the teeth to wear in between set to compensate your teeth are programmed to move forward in your mouth to stay in contact with each other. So even if you get your teeth straight and if you don’t wear a retainer they will crowd again.
My teeth are perfect but I still choose to remove my wisdom teeth. You see the Army gives you three days of recovery when your wisdom teeth is removed. So if you remove it on a wednesday, you do not have to show up to work until Monday. I removed the top ones 10 years ago. I need a break. I am going to find a good wednesday to remove the lower ones.
I think this presentation misses something. The idea that an individual and their diet alone affects their jaw genetics is not true. The missing part here is that large jaws with grinding teeth stopped being an evolutionary advantage so it was no longer selected for. Therefore people born with smaller jaws were able to survive just as well as those with larger jaws and passed on those genetics.
i would love to see a study on dental crowding between the USA and Europe. The first thing I noticed, when I got to the USA, was the high chewing gum demand xD (USA per person consumtion ~155% compared to the EU) sounds weird, but maybe they could rly be benefitial for the jaw, and in preventing crooked teeth
The book Nutrition and Physical Degeneration covers this in great detail. It’s not the texture of the food; rather, it’s the content. As we transitioned into modern agriculture, the introduction of high carbohydrate diets produced poor jaw formation and dental caries. These changes were observed as modern nutrition was introduced into several isolated cultures around the world – regardless of race.
I remember hearing about this years and years ago. It’s just now that I think of the eight teeth I had removed. Four in high school which they told me were my wisdom teeth (they weren’t) and then another four when I was 28 which were my actual wisdom teeth. Two of my wisdom teeth had to be surgically removed. My teeth were extremely crowded. I feel like I’m half shark. lol
i had two rounds of braces and an expander as a kid because of my very small jaw and incredibly crooked teeth. however my sister has mostly straight teeth. i was not picky as a child and we ate the same diet—lots of carrots and lots of chewing. however my grandpa has really crooked teeth (that look like mine did) and my mom has a small jaw. i think part of it must be genetic because i’m not sure how i could’ve reversed this. i also had no gaps between my baby teeth like i was supposed to.
I’m in my early 40s and got Invisalign 6 months ago. I never had enough money to fix my teeth… I had to first have two extractions, get two implants, and also get a crown… So, the journey has been… Expensive. My smile is night and day. I had a gap on my right side from an old Army extraction that was an empty space. I had bottom and top crowding… I just smiled less. Looking at my teeth and smile in the mirror, and knowing the cost makes me sad for people who can’t afford good dental care. What a strange world we live in.
I have straight teeth with all 4 wisdom teeth coming in fine. In fact, they weren’t removed until I was in my late 50’s only because it was hard over the years to floss and clean back there so instead of keep filling cavities, we pulled them out. One of my two daughters is the same and no one in my family has ever needed braces. One dentist told me it was because my whole family (backed up by 500 years of genealogy) were only from France and the British Isles. That kind of freaked me out because it sounded kind of like we were getting into Eugenics or something like that but maybe it made a difference in my family.
Interesting. I never needed braces but I never had wisdom teeth. I would also note that my mother hates to cook but we didn’t have money for take-away growing up. We ate a lot of nuts, fruit, one pot meals (stews which have chewier meat) and neither of my siblings needed braces either. I get asked if I had braces as a kid and it feels weird because my parents couldn’t afford braces because we lived in a HCOL area. I’m kinda lucky I guess.
My teeth are close enough to perfect. Had room for all but my top 2 wisdom teeth, all my teeth came in straight, and the 9 fillings I had by age 13 I got removed recently and found out they were all on healthy teeth. My old dentist was just filling in teeth for no reason. So I have had 0 cavities ever. I was the kid growing up who tried eating only meat at age 5 and 10, and succeeded at 15. With some weeks leading up to then I would just eat the meat from my meals and nothing but.
Simple reason. 1. diet. too much sugar, lack of minerals and specific vitamins. some say diet high in dairy can cause issues. 2. environment. lack of sunshine. 3. Behaviour. The jaw is a bone and like all bones its growth/strength is related to use of muscles etc. The use of the tongue also effects teeth.
i had no problem with my wisdom tooth and my teeth are not crooked thankfully. i believe chewing gums almost everyday before school since young helped me have a good jawline and nice facial structure. i was always exercising my face even before mewing became a trend.. nutrition rlly does change how u look so i suggest parents insist having a healthy lifestyle on their children because once their facial bones stop growing its gonna be hard to change it unless u get surgery, idk if its all genetics on my part but simple habit like what ive said may help.
It might be a similar reason that most wild animals have straight teeth. They evolved teeth to fit their diet, and so did we. But then we changed our diet substantially. Our teeth weren’t meant to chew pizza and cereal with milk all day. I grew up eating tons of vegetables and apples and never needed correction.
BREATH THROUGH YOUR NOSE. It’s worth mentioning that mouth breathing, instead of nose breathing, can facilitate and significantly contribute to a weak jaw, leading to crooked teeth. Mewing will dramatically help to prevent tooth crookedness. Mewing is a technique in which the tongue is placed on the roof of the mouth to make the jaw more prominent and square (you can find lectures on youtube explaining that).
I remember having to get braces as a kid.. my teeth were misaligned by a few degrees. I suspect to this day that it may have been a bit of a cosmetic decision (the medical professionals obviously mean well) at it’s root. It made many of these tougher foods harder to eat (apples, celery, jerky). I also did have to get my wisdom teeth removed. I won’t go as far as to say that dentistry is wrong. Just something to chew on, as you say.
I believe part os our modern diet and part of it is simply genetics. Im 41 and never had any issue’s with my teeth. I recently got my wisdomteeth removed but not due to issue with them but im grinding my teeth at night and that caused a tinnitus. It took my dentist his two nurses one full hour to remove one of my wisdomteeths and he broke three instruments during that session before he finally got it out. He said that he never met anyone with such good, healthy and strong teeths in his 30 year career as dentist. The nurses were astonished and kept saying “i have never seen such healthy teeth in my life. only from books”. Im just lucky with genetics. I never had to take special care of them. All regular dentists appointments end up with “Come to me when you have a problem. You teeth are perfect.”. My father is 78 years old and still has all his original teeths and no issues either.
Looks like eating red delicious apples like candy did me a huge favor for my teeth because I dodged the braces “bullet” growing up. My older brother didn’t munch on apples as much as I did and he had to have braces, although he never had a cavity and I had a handful growing up. They kinda break even, I guess. I guess an apple a day really does keep the doctor away, just not medical doctors, but rather orthodontists whom we address as “doctors”, although the high fiber in apples meant I seldom had stomach-related bugs.
I’ve always wondered why I never struggled with cavities, braces, or any issues with my teeth. I’ve always had a straight and healthy smile, and I don’t even floss like I should. I was always the exception, not the rule. Genetics Definitely have to do with it. My dad also has the same luck with his teeth. He used to say that Mexicans tend to have better teeth than Americans because we grew up on corn from tortilla, which apparently is great for teeth development
My husband has no crowding, perfectly straight teeth without braces and has his wisdom teeth. I on the other hand have, crowding, crocked teeth and my wisdom teeth had to be removed. 😭 Oh I’m also looking to het braces for the first time now. Not fair… I ate pretty healthy food growing up, almost never processed food.
There are people today in uncontacted/primitive tribes who still have perfectly straight and white teeth because of their diet. I forget which documentary I saw, but it featured one of these tribes, and I couldn’t get over how all the tribe members had flawless teeth. I, on the other hand, paid an obscene amount for Invisalign, and three of my wisdom teeth are positioned sideways inside my gums and will probably stay there forever.
People with small mouths evolved because carrying around a large heavy jawbone costs a lot of energy and isn’t necessary if you eat mostly cooked food, but it comes with impacted wisdom teeth. There may have been some advantages with hunting as well due to the ability to run faster with a smaller weight in the head area.
I have a small jaw and teeth, but a very bad bite. I had to wear braces from 12-14, but after they were removed, a year later my teeth shifted again and I will have to wear braces again😍, because due to malocclusion, my joint in the jaw feels bad. Now I am 17 years old, I really do not want to experience all this again, but the wrong bite really ruins my life. I am grateful that i have an opportunity to fix that, but… SO TIRED
I was born with 3. One is embedded in my cheek bone. A healthy molar was extracted when I was a child and a spacer was placed to allow the wisdom tooth to emerge in its place. This was done to alleviate crowding of my front bottom teeth because my parents wouldn’t pay for braces (they had insurance and the money). This technique did not work. The 3rd wisdom tooth gave me no problems but was pulled by the military because of their overseas deployment requirements.
My father is a war child. He worked at a farm from 12 years old. Often he ate the things straight off from the soil or trees, without any cooking or processing. His teeth were remarkably wide-spaced, and he was able to crack walnuts without any nutcracker. Her had a set of healthy teeth until his passing at 89 years old.
C’est super d’être allée au delà de tes a prioris concernant les nounous ! ❤Comme tu le dis, en mettant des règles claires, tu as réussi à avoir du temps de qualité seule, (ce qui est tellement important pour se sentir bien dans sa peau!) du temps avec ton partenaire et aussi du temps avec ta fille ❤️ Je profite de ta vidéo pour parler d’un sujet très sensible en Belgique dont je suis d’ailleurs victime. En Belgique, les crèches publiques sont toutes prises d’assaut. Il n’y a plus de place pour les bébés à moins de patienter presque deux ans. Deux ans de file d’attente, tu imagines ? Je suis inscrite sur cette fameuse liste depuis mes 3 mois de grossesse. Les places en crèches privées commencent à être également prises d’assaut . Elles sont également hors de prix. Faute de moyens, nous avons décidé que je prendrai un congé parental pour élever mon fils, puisque je n’ai pas les moyens d’une crèche privée, ni de place en Crèche publique. Et tu sais ce qui vient de m’arriver ? J’ai reçu une lettre de licenciement. On m’a licenciée car j’ai du prendre un congé pour élever mon fils. C’est injuste. Les femmes sont toujours discriminées professionnellement… si le gouvernement ouvrait plus de places en crèche, jamais cela ne me serait arrivé😢
My crowding was from a diastema. I had room for all of my teeth, but the muscle between my front teeth pushed everything around. Didn’t have to have a palate expander. Didn’t have to use rubber bands. Didn’t have to get any teeth pulled. I actually haven’t had any issues with my teeth besides the diastema. I grew up eating a typical American diet. My last cleaning at the dentist took 15 minutes, including the polishing. 🤷🏻♀️
There’s a whole book on ancient human teeth. The basic premise of the book is that we eat “too civilized” and our teeth are meant for more work than we give them. We probably keep our crooked teeth much longer with modern dental health… but we aren’t using them the way they were “supposed” to be used so they end up all crooked and with overbite and stuff.
As someone who has full dentures at 30 let me let you in on a little secret: Your diet has almost no bearing on your teeth. I grew up brushing my teeth religiously because of how bad my genetics are, while all of my friends would brush their teeth once a week at best. All of mine eventually rotted out of my head, while they never even had to deal with a cavity. Evolution explains everything about this subject. The reason ancient people had nice teeth is because the ones who had bad teeth starved to death and never reproduced. It’s the same reason peanut allergies didn’t exist back then either. People nowadays can survive with a deadly allergy or terrible teeth because of modern medicine. What used to be a death sentence is now just an inconvenience.
i have pretty close to perfect teeth without ever having anything changed. I still have all of them, including wisdom teeth. I’m blond, and i have green eyes and i live in the city (mostly, i AM a farmer, but i don’t live AT the farm), so I wouldn’t say i have tougher demand from my jaw than most anyone in my country. except that i care for selecting for food based on toughness, and that i like to chew on ice. but i never did that often enough for it to account for this.
Weston A Price in 1930 identified two populations who ate soft food, the fish-eating Pacific Islanders and the dairy-eating Swiss, and they both had perfect teeth. This seems to indicate its nothing to do with chewing, more likely to be animal nutrition. I conclude that jaw bone SIZE is determined by nutrition alone. Although jaw bone density may depend on chewing.
That makes perfect sence. Ive got a very narrow jaw and have asked my dentist to remove some of my teath but they wont remove healthy teeth in uk. I have never had wisdom teeth removed and am getting more crowded as i get older. Im not in pain but am getting more crowded and crooked as i get older, with healthy teeth
Interesting article. Surprised you didn’t mention that many of the European people have “bad” teeth due to the inbreeding that was done to preserve lineages during the middle ages. They understood that children often have good traits handed down by parents, but failed to understand that it can also create genetic problems such as the “Habsburg jaw” deformity. I wonder if those defects have become more the norm rather than the exception.
Remember that humans only chew for a few minutes each day, so eating softer foods isn’t such a massive influence on tooth position. What about nasal breathing compared with mouth breathing? Years ago, growing up in England automatically meant crooked teeth. This had a lot to do with dreadful air pollution, as in Pea soup fogs and burning coal in the household. Now that coal fires have disappeared, the next generations of English kids have much improved tooth position. Tongue posture, as in where the tongue sits in the mouth influences causes all sorts of issues too. research Dr John Mew, orthodontist
You neglect to mention Scientists already confirmed that our jaws can fit wisdom teeth. It’s just that we need to have a proper hardy diet starting in early age to develop a jaw that can house wisdom teeth. This experiment was already done a few times with the comparison of indigenous people vs city folk. The indigenous children that transitioned to a soft diet had their jaw resemble that of a city folk. Whilst those that remained on the hardy diet still grew jaws that housed straight teeth with space for wisdom teeth
I never understood why it’s said the wisdom teeth are responsible for crowding in the mouth, when they come in much later than the permanent tooth pattern is formed. Including all the crowding. That’s what I’ve seen, anyway. Permanent tooth pattern with its flaws, then up to ten years later wisdom teeth come in.
My teeth were crowded and my upper jaw is small, but it was because of mouth breathing. I was a c section baby with bad seasonal pollen allergies, and developed the habit of mouth breathing when congested. This resulted in my tongue not sitting at the top of my mouth as it was supposed to be, so my upper jaw didnt develop properly. I had to have a palette expander and braces and my teeth are still very crooked.
Our technological advances have erased many of the evolutionary pressure we would face in nature, we can survive despite having crooked teeth that are more prone to infection. While note quite probable seems kinda ligic that humanity were to develop bad dentures since those genes get to perpetuate much more than on a more unforgiving environment.
Man, I can’t believe how many times I had strange contraptions in my mouth as a kid. I had weird ones that had a key that you had to turn every night to I guess expand my pallete or something. I remember they put this one torture device in my mouth it wasn’t braces, but it looked like I had steel wires all over the place under and over my teeth. It was so painful I couldn’t even eat. That one probably didn’t stick around for longer than a month. I eventually got braces which I actually had no problem with. My two front teeth were completely overlapping along with some bottom ones. It wasn’t nearly as painful as the other strange contraption I had. They even gave me a head piece that linked into some back teeth while I had the braces. I only had to wear it at night. I only had the braces in for like a year or two and I was given an invisalign sorta device that acted as a retainer. I’m 41 now, I’ve had all my wisdom teeth removed because of impactions. Besides the wisdom teeth I only had one extracted because it broke off at the gum line. They suggested a dental implant, and even made it sound like my face would look deformed if I didn’t get it. F*ck off. I’m just going to brush and floss everyday and get fillings when needed. I only had like 4 cavities which I don’t think is too bad for my age.
Interesting that just that my parents and grandparents have good teeth while I have horrible crowding. My parents and grandparents had a rural/village lifestyle eating harder items and raw foods. It is me and my siblings who have had an urban and pampered upbringing with processed and softer foods, and it happens to be that we have teeth problems. It also amazes me that they can crack open walnuts with their teeth.
My dentist told me I have a small mouth but big teeth. I only have 24 teeth. At 19 I had my wisdom teeth removed, they didn’t have anywhere to go and the bottom ones were coming in sideways instead of straight up. I had braces twice because the top got crooked again. My mom and gram also had crooked teeth. My son seems to have my husband’s teeth but they are still a little crooked, not as bad as mine were.
My 15 year old son has straight teeth, never had cavities, but he has sensory processing disorder and only eats McDonalds French Fries, classic Lays potato chip, and spaghetti. Almost everything else causes him to gag and vomit just from the smell. So explain his straight teeth it’s literally the opposite of the hypothesis.
In order to evolve, an ancient ancestor born with a small jaw had a lesser chance of surviving, until they started eating processed foods, doesn’t seem like a very strong selecting force, given that our jaws are still quite strong, I would have liked it if the author would have paid more attention to the selective process that is key to his hypothesis, but nope just breezed right over it.
I had 5 years of braces with a bionator and palette splitter growing up. Over 10k in braces in the 90s. My dental record were requested to be used for study in orthodontic school lol. All due to some soft foods lol. I wonder what we can do outside of diet to prevent this in children? Bite blocks to exercise the jaw?
These ancestors were younger and still had healthy teeth. They died early due to poor sanitation, a lack of hospitalization, and no medicine. Their food had lacked sugar-based ingredients. Also, their food markets and supplies were limited, and they had sporadic food shortages. That’s the reason they looked healthy when they were partially fasting (nearly starvation). Today, we eat junk food and candies and drink soda with addictive, low-cost sugar-based ingredients that make the food and beverage industries huge profits. 😱
Because the ones that didn’t were out-competed and they died. The only reason we can start having flaws like crooked teeth again is because we live in a society where we can receive help from other humans. For instance, if I was forced to live in the wild the chances are that my vision would get me killed. I wear glasses let’s face it, they’d break eventually. I would be all but blind and wouldn’t be able to see danger well enough. However, since we do live in a society I can always have my glasses and during short periods where I might not have them do to them being damaged, other humans can help me out.
My boys have been lucky to have large enough jaws that they didn’t need braces. All they teeth are large and straight. And with brushing 2x a day don’t have any fillings. One is 34 years old and one is 22 and only go to dentist for occational cleaning and check up. Mouth hygiene will keep you away from dentist and save you thousands of dollars. My younger son was on a holiday back in our country and went to dentist for cleaning. When dentist looked into his mouth he asked him, what am I looking in here, what is the problem. My son said, nothing just a cleaning. Dentist couldn’t belive how good his teeth are. He got compliments from the dentist.
I never needed braces but my dentists keeps pointing out how small my mouth is. It’s the cause of many, many troubles. It’s hard to clean in the back corners but also between my teeth because they’re so pressed together. My dentist told me not only do my wisdom teeth need to be removed (two of them are already gone, the other two havent come out far enough yet) but I also need to remove the molars next to them as soon as something is wrong with them. She says it’s simply TOO claustrophobic in there to treat it. Ma’am how do you treat kids??? Is it really that bad??? Oh god.
The Industrial Revolution… also a disaster for public health due to dramatic drops in nutrition for the wider public, as people moved away from farms and into cities. Factory workers subsisted on bread made with white flour and white sugar, and daily life focused indoors so people rarely got much sunlight. Almost everyone developed rickets, and even most babies got rickets. (That’s the history of why milk is fortified with vitamin d now). Lack of vitamin d and adequate mineral intake would surely affect tooth and jaw development quite a bit more than “food wasn’t as crunchy.”
Αν ισχύει η εξέλιξη γιατί ενώ έχουν εξελιχθεί οι πίθηκοι σε ανθρώπους υπάρχουν και σήμερα οι πίθηκοι; Και γιατί ακόμη υπάρχουν και σήμερα, ενώ έχουν εξελιχθεί σύμφωνα με τη θεωρία της εξέλιξης, ΚΑΙ ΟΙ ΤΟΣΟ ΠΡΩΤΟΓΟΝΕΣ (σύμφωνα με τη θεωρία της εξέλιξης) μορφές της ζωής όπως π.χ. τα βακτήρια και τα χόρτα και τα φυτά ή άλλες πολύ πρωτόγονες μορφές της ζωής, χωρίς να είναι έστω λίγο πιο πολύ εξελιγμένες; (δηλαδή σήμερα δεν έπρεπε να υπάρχουν π.χ. βακτήρια, χόρτα, φυτά ή άλλες πολύ πρωτόγονες μορφές της ζωής επειδή έπρεπε να είχαν εξελιχθεί) Αν τα είδη εξελίσσονται και οι πιο εξελιγμένες μορφές της ζωής προέρχονται από τις πιο πρωτόγονες (και αυτό, το ότι τα είδη εξελίσσονται, να συμβαίνει σε πολύ μεγάλη κλίμακα και συνεχώς, με αυτόν τον τρόπο περνώντας πολύ καιρός λένε ότι έγιναν όλα τα ζωντανά διαφορετικά είδη που υπάρχουν στον πλανήτη) είναι παράξενο πώς οι τόσο πρωτόγονες μορφές της ζωής συγχρόνως δεν έχουν εξελιχθεί σε πιο προηγμένα είδη καθόλου μέχρι σήμερα έστω και λίγο. Επίσης ενώ υπάρχουν και σήμερα οι πίθηκοι που λένε ότι ο πίθηκος είναι ο –πιο παλιός, μη ενδιάμεσος– κρίκος του προγόνου του ανθρώπου και του ανθρώπου αλλά όμως κρίκος έστω και μη ενδιάμεσος, οι λεγόμενοι ενδιάμεσοι κρίκοι του πιθήκου και του ανθρώπου, οι πιθηκάνθρωποι, ή οι λεγόμενοι ενδιάμεσοι κρίκοι του προγόνου του ανθρώπου και του ανθρώπου όποιος και να ήταν ο λεγόμενος πρόγονος του ανθρώπου αν πούμε ότι ίσως δεν ήταν ο πίθηκος, δεν υπάρχουν και σήμερα. Υπάρχουν και σήμερα οι λεγόμενοι πιθηκάνθρωποι όπως υπάρχουν και σήμερα οι πίθηκοι; Και αυτό συμβαίνει για όλα τα είδη που έχουν ζωή, οι λεγόμενοι ενδιάμεσοι κρίκοι λείπουν σήμερα ενώ οι πιο παλιοί λεγόμενοι κρίκοι δεν λείπουν αλλά υπάρχουν και σήμερα.
My parents made sure I don’t have crooked teeth by ensuring i remove teeth as soon as they become loose. Using tongue to adjust if new teeth coming is crooked. Also not sleeping with mouth open. Brushing teeth with hand by pressing hard. Also I had an unusual temper and used to grind my teeth in anger 😃guess that helped toooo Because my sister slacked in many of these ..and she would have to use braces
It would be consistent with the rest of the body that compression should increase bone mass, density, within the jaw but to translate that to outward growth, to accommodate the teeth, you need to exercise the jaw, with the most effect way of doing that being ripping meat with the teeth. Start your kids on meat as early as you can.
I can tell you for a fact that I HAVE seen skulls of Early Man with crooked teeth, as well as plenty of crooked teeth in the mouths of indigenous folks. However, as my dentists AND my high school anthropology teacher have pointed out to me, human jaws are getting smaller and smaller with each new generation, including folks who AREN’T from Western societies. Today, most people’s jaws are too small to even accommodate their “wisdom” teeth, whereas my dad’s HUGE jaw easily accommodated his ENTIRE set of teeth up to his dying day. He also never had a tooth chip or crack on him, and though he barely cared for his teeth, he never suffered gum disease and barely had a cavity in his almost 92 years of living. Crooked teeth are especially common with folks whose parents come from different races, and even those whose parents come from different ethnicities. Both of my half-sisters had pretty much straight teeth, whereas I have at least three teeth that are crooked. However, my mother and her first husband had the same racial and ethnic backgrounds, whereas my mother and her second husband (my father) were different.
If it were only teeth. Everything is wrong, both physically and psychologically. Nothing is natural, we haven’t lived truth for thousands and thousands of years. This is why the body’s guidance system is constantly screaming that something is missing. This leads to addictions/repetitive behaviors to silence the constant screams of the body. Life has become a pathological experience.
I never noticed my wisdom teeth came in and actually didn’t know I had them. I had them removed a few years ago due to very very slight pain. They said I only had any discomfort because I have a very small jaw. But they were only slightly impacted and it wasn’t even showing up on the xray. And they kept insisting I had one removed years earlier but I never had. So they had to look up all my records but to childhood and see for themselves. Turns out I only had 3 come in. They still want to know how I never knew that they came in in the first place. I just never felt it .
I wonder my comment from two weeks ago doesn’t appear to other people. It’s 100% polite and just making a note on how this hypothesis isn’t so much for “ancient humans” as ancient as the image may suggest, but more related to rather modern humans, also stressing that modern/living humans do have nevertheless genetic differences affecting those traits, conjointly with such developmental factors affected by culture/habit. Not even controversial, for some reason deleted, while comments just spreading made-up nonsense are left published for all.
Since these animals are being raised in a controlled environment & will most likely be unable to fend for themselves if released (for example, the squirrel monkeys raised on artificial good not being able to chew natural food well), what happens to them once the study has ended? Are they fostered by the lab till death, given up to zoo etc. or put down?
Eating sugar and starch cause plaques at tooth gum line, weakening tooth sockets, rotting both gums and teeth, also causing decay. Eating meat doesn’t leave pathological debris, doesn’t cause plaques, does require isometric chewing that aligns teeth and strengthens tissues and muscles. As a carnivore, I don’t need the dentist because there’s no more plaques to scrape, no more gum disease, no cavities, no broken teeth (4 as a vegan), and I only brush when I feel like it, maybe weekly. My dentist asked how do I do it, since my mouth is so radically different than three years ago. I quit carbs and veg, just eat meat. No kidding.😅