Overweight children are at high risk of becoming overweight adolescents and adults, placing them at risk of increasing chronic diseases like heart disease and diabetes in the future. They are liable to develop stress, sadness, and low self-esteem. Major causes of childhood obesity are as follows: Diet : Constant eating of high-calorie foods, such as fast foods, baked foods and vending machine snacks, can easily cause a child to gain weight. Lack of Physical Activities : Most children spent more time in sedentary activities, like watching television or playing video games which also contributes to the problem. Children who don't exercise are more prone to gaining unnecessary weight because they don't burn as many calories. Family Factors : If a child comes from a family of overweight people, he or she may be more likely to put on weight. This is especially true in an environment where high-calorie foods are always available and physical activity isn't encourage