Krystal Wilson Wilson 1
21 February 2014
Essay One FD, description
Obesity is a person's body mass index, or BMI, which is calculated from height and weight. If a BMI is greater than or equal to 30, this means you are obese. Obesity is contributed to physical inactivity, genes, and can lead to health problems.
Physical inactivity can lead to obesity in all age groups, especially among adolescence. Most obese young people do not eat more than those of normal weight, actually most eat less, however they are so inactive that what they eat is not physically worked off ("Obesity"). Physical activity begins to decline in adolescence with a concomitant increase in weight ("Physical inactivity and obesity: a vicious circle"). Physical inactivity in adolescence strongly and independently predicts abdominal obesity in young adult hood. Keeping active can help people stay at a healthy weight or lose weight. Globally, about one in three people gets little, if any, physical activity (World Health Organization). There has been some debate, however, about just how much activity people need to maintain a healthy weight or to help with weight loss, and most studies suggest
that two and a half hours a week are simply not enough. Therefore, physical activity should be seriously recommended for obesity prevention.
People come in all shapes and sizes – tall, short, thin, wide hips, rounded stomach, you name it. Much of how we look, including how easy it is for us to gain weight or where we store it, is genetic. Therefore, heredity is also a factor. The relationship is based on genes, the basic unit in cells that determine inherited characteristics. Some genes may over produce a certain chemical known as hormones ("Prevalence of Obesity in the United States"). As a...