Yes,it's ture!British children are getting fat,but they are also growing in other(ways).Studies show that the height and weight of modern ten-year-olds are(different)from the height and weight of their parents at ten.British ten-year-olds are mow on average 141cm tall(138-139cm in 1972).The (same)studies show a 17% increase in weight.
The studies don't (give)reasons for this,but we can (guess)that the children are(changing)for two main reasons:diet and exercise.These days,children eat (healthy)food a lot of time,and this explains the increase in (height)to 141cm,but they also eat a lot of unhealthy food,for example,sweets,chips,cakes and chocolates.After school,many of today's children(sit)down all evening.They watch TV,listen to music,or do their homework but they often don't (take)any exercise.