research for weight

   Lately, many researchs show that children in developed countries are getting fatter and fatter. Why is it happening? Why nobody tries to prevent it from happening or at least to reduce it apart from some scientists and some concerned people?
   I believe that gaining weight is one downside of technology. What do I mean? I mean that children nowadays are having a sedentary life, watching many hours daily TV or playing computer games and that’s a very good reason for gaining weight. They, also, find exercising boring (sometimes I don’t blaim them!), so they avoid exercising, which is detrimental for their health.  
   What should adults do for this? First of all, parents should talk with their children and explain them why it’s not right watching too many hours watching TV or playing computer games instead of exercising. In addition, it’s of vital importance for parents to give their children the good example by exercising and avoiding watching too much TV. As for the adults generally should support the scientists who try to persuade politicians to do something about this problem, because if they don’t, then in the future nobody will be able to reduce this problem.
   Now many people will wonder why politicians  not trying to prevent it or at least  reduce it. The answer is I don’t know and I believe that a few people can answer this question. I can guess though that they prefer the children to watch many hours TV and playing computer games because it is easier for them to control the children. That’s why it will be difficult to see them taking some real measures about reducing this problem…