I think the feast to eat too much. It is not a design as one that makes the risk of the occurrence of obesity.
Because if we eat, we exercise enough, we'll have a healthy, strong.
But most people usually don't like to exercise, making the risk of the occurrence of obesity.
From a survey in the year 2554 (2011) It was found that people in Thailand to exercise only 26% only.
There is a reason why people don't exercise, so the risk as obesity than those who exercise.