school can give some physical change. since school has started I've gained a few pounds because there is a lot of studying and not much activity since the weather isn't great and I'm so busy. other teens might look dishevled because they aren't getting enough sleep.
they have sex
Well i say that cell phones effect mostly teenagers even though i am one i still think that cell phones effect teenagers more than they do adults.
It does not.
as we know, the teenagers are very active...but sometimes it happens that we don't get much time from our busy schedule for exercising...this leads to lack of physical fitness....
Teenagers are growing up. The physical fitness exercises may reduce the final height. After eighteen, you may go for the physical fitness exercises, probably. It is safer to wait till you complete your twenty.
Jerry A Hughes has written: 'The effect of an individualized, nonsupervised, contracted fitness program on the selected fitness variables of high school students' -- subject(s): Physical training, High school students, Teenagers, Physical fitness
Of course not that's why it's alcohol.
It can have negative legal consequences. However, consuming alcohol in moderation has never been proven to have negative health consequences for teenagers.
60 minutes a day
how does physical environment effect human sediment?
It would depend upon the individual teenager.
60 - 120 mins:)