Our changing lifestyles have had a far-reaching effect on our health. Today, many young children are chronically overweight as a result. In this essay, I will outline some causes of childhood obesity and suggest ways the problem can be addressed. While obesity has several causes, poor diets and insufficient exercise appear to be key drivers of this serious disease. A move to a convenience food diet both in schools and at home has resulted in many youngsters eating mostly nutrient-low foods, which are high in sugars and fats and low in fibre. Our bodies are unable to process these foods efficiently so fat accumulates until our body mass index is high enough for us to be diagnosed as obese. Exercise is well known to assist the body in getting rid of fat but the reality today for many children is that they take almost none. Spending more time sitting at school or on devices, and being driven everywhere in cars, it is difficult for many children to avoid becoming overweight. ...