This article suggests that clumsy children are more likely to become obese as adults because they exercise less. It is based on a study that found children with poor hand control and co-ordination are more likely to be obese later on in life. I'm not entirely sure the link is down to the children being clumsy, its more likely to be down to lack of exercise as children. I was a very clumsy child and have always managed to break pretty much everything I touch, I still amaze myself how quickly we seem to get through glasses in my house, I never have a set for more than a few weeks before an accident occurs. Whilst naturally clumsy, however, I have not grown up obese, although I was quite an active child.