第1个回答 2011-02-27
Nowdays,there are more and more teenagers who are obese . In my opinions,the reasons are as follows:Frist,the society are developing so quickly.So our living standard is higher than before.Now,you can buy anything that you want to eat.Second,teenagers are busy studying.It is not enough timg for them to do exercise.At last,the teenagers are lazy.If they have time, they don't want to do sports.As far as I can see,we teenagers are growing ,we should try our best to take exercise in spare time in order to develop healthy bodies .
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