Obesity is included as one of the risk factors for heart disease, stroke, diabetes, and several types of cancers. This means the more excess fat you have the greater the chance you have of becoming ill from these diseases. In addition, this is a huge problem in north America, as the obesity rate is increasing dramatically. While the topic is very complex, the bottom line is that one becomes obese by consuming more calories than what their body needs. As a result, their body stores this extra energy as adipose tissue (fat). Below are a couple of video clips that will explain more about obesity