This presentation covers the topics of what obesity is, how common it is, how to calculate BMI, the causes and effects of obesity, and potential solutions. Obesity is defined as being overweight with a BMI over 30. Around one in three Americans are obese, with rates rising from 20-25% between 1991 and 1998. Causes include genetics, overeating, and lack of physical activity. Effects of obesity include increased risk of cancer, heart attack, and poor overall health. The presentation provides sources on obesity and a BBC video on solutions that do not involve "magic pills" but require lifestyle changes.