OBESITY
Obesity, as defined as a body weight fifteen percent or more above the ideal for one's height and age. It is typically evaluated by measuring body mass index (BMI). According to the National Obesity Association (www.obesity.org), BMI is calculated by dividing one's weight in kilograms by the square of his/her height in meters (BMI = kg / m2). While the BMI of a person of normal weight is 18.5 - 24.9, the BMI of an obese person if above 30 (BMI over 40 is considered morbidly obese). BMI is an indicator of a medical condition when used in conjunction with other factors such as race, ethnicity, muscularity, age, and sex. The natural assumption is that obese individuals simply eat more than those of average weight, however there are three main causes of obesity; genes, environment, and behavior. Genetics play a large part in obesity just as they would play a part in determining one's eye color. A person born to overweight parents is likely to be overweight. Genetics also affect the hormones that control fat regulation. For example, Leptin, is a hormone produced in fat cells that controls weight by signaling the brain to eat less when enough body fat is stored. If one does not produce enough Leptin, this control is lost and obesity occurs. Environment is another factor for obesity. America is a society where you do not even have to get off your couch to eat a