0
Those differences are mainly genetic, although nutrition also plays a role.
___________________________________________________________________
This is due to Human Growth Hormone (HGH)The person's answer above is correct but definitely not all inclusive of the possible factors. A person's rate of growth depends, among other things, on the release of Human Growth Hormone (HGH), otherwise known as somatotropin. HGH is released by the anterior pituitary gland; and it's release is definitely going to be affected by such things as genetics and nutrition but other factors play a role as well, including sleep. According to the website "The Brain From Top to Bottom,"1 (TBFTTB) HGH also plays a role in metabolism and fat burning. Here's a direct quote from their site:
"The secretion of human growth hormone, which is essential for bone and muscle growth in children, takes place mainly during deep sleep, which occurs mostly at the start of the night. In adults, this hormone plays an important role in metabolism, promoting the synthesis of proteins, helping to burn fats, strengthening bones, and so on."1
How well we sleep is dependent on many factors, not the least of which is chronobiology. The above site is highly informative and gives information on various levels of understanding: beginner, intermediate, and advanced. So I would recommend it highly for learning more about the brain as well as various other things. You can also learn a bit more on John Kimball's site.2 He is a Harvard graduate and has his doctorate. The information on this site is limited but understandable for the most part. The body is a very highly complex system; so it's hard to get a short, concise, uncomplicated answer to any question on its workings. This second site is probably too concise and could afford a little more explanation. However it gives a couple of terms that can be Googled to find out more and clearly outlines the pituitary's function involving hormones, including HGH.
If you want downright complicated though, you can always go to Wikipedia.3 :) They state that HGH has "intrinsic lactogenic activity" which is suggesting that it generates the formation of lactate which is used to "feed" the brain's neurons. Wikipedia associates HGH release with REM sleep, while TBFTTB states that it is released in deep sleep, which is stage 4 (delta) sleep. I'm not sure which is correct.
1 http://thebrain.mcgill.ca/flash/i/i_11/i_11_p/i_11_p_hor/i_11_p_hor.html
2 http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/P/Pituitary.html#GH
3 http://en.wikipedia.org/wiki/Growth_hormone
---Debi62
__________________________________________________________________
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoPut basically, genes. People people have the genes to be small and some have the genes to be tall. It's like eye color. Gene for brown or gene for blue.
anybody asking this question is a dumb by nature...
Wiki User
∙ 7y agoNobody really knows why some people mature earlier, but it probably has a lot to do with how much responsibility they have. Parents who allow their children to fail and experience the consequences of their own actions usually help those children to mature faster. Kids who are spoiled and have everything done for them may never learn how to act in a mature fashion.
Add your answer:
Earn +20 pts
Why do people think that they are so smart?
Some people think that they r so smart so they give attitude & some people use their smartness...
What did most people have in the 60s was it long hair or short hair?
In the 60's a lot of people had long hair and only few people so it's like this in basic..... There was 100 people in a disco. 97 had long hair and 3 had short hair.Most people had short hair in 1960. By 1969 the average was a lot longer.Thank you!Hope I helped!
Why does Japan have tall buildings?
Lots of people, not a lot of land. so if you can't build sideways you build up. (Ps. this is not a psychology question)
What is the orgin of addiction?
Making pleasure is the root of all addiction, but it is short lasting, some have guilt also. So don't follow temptation.
Wha does being an emo require?
there are no specific things you have to do to be emo but emo is short for emotional so emo people are either super depressed, angry, or confused sometimes emo people cut themselves. but not all emo people do.
What is it called when your afraid of short people?
I believe that gigaphobia is the fear of tall people.
Was Ivan the terrible 7 ft tall?
No. Actually there is no information about his height. People were short then so anyone that was tall stood out.
Why are some flowers tall and some short?
It is because of it's genetic. Every type animals and plants has it's own unique combination of genetic. So some flowers are tall and some short due to this reason.
What causes a person to be so short?
Well they can be a midget or they were born early. or they might have a disease, i am too tall but i know alot of short people ( not just because i am tall )
Do height predictors do right?
no there not always right well they hardly ever are no one can predict it cause there are short people with tall parents and tall people with short parents so therefor there's no exact answer.
Why short am i?
From a race of short beings is Yoda. Tall he is not.
Why are the Dutch so tall?
I am Dutch and I've found that they are tall, short and in between. However, there are many tall Dutch people because they are relatively wealthy and take pride in using some of this wealth to further the health of their people. And also because in the food that they eat there are a lot of grow-hormons.
What are some short yo momma jokes?
Yo momma's so short she makes plankton look 10 feet tall
You are a small guy and you are just so strongly attracted to tall girls?
You are normal. Tall girls rule! It is not unusual for people of either sex to be attracted to "opposites": tall girls, to short men, short girls to tall men, etc. Enjoy!
Who runs faster shorter or taller people?
Normally tall people because their legs take longer strides and take up more space in a shorter time. With short people, they don't take very long strides so they aren't that fast. But some people i know are pretty short and they are some of the fastest people in the grade.
Why are some people taller than others?
People have different growth rates, some may grow faster others may grow slower and it also depends on yr genetic makeup.Lets say if your parents are tall you might be tall to.there family.or they are a late bloomer or ( again ) they have a disease were they can't grow that much! think a little people!
Why do people tall?
people get tall because of the jeans of there family like there grandmother might be tall but you mother might be short and your father might be tall too so you are more then likely to become tall I am only 14 and I am almost 6feet tall I am a girl my father is tall my mother is short but my moms mom is also tall too so thats what gave me the jeans to become tall and to let you know I freaking hate being tall because now it is hard finding a tall boyfriend really cute and really taller then me
