70.9% of the Earth's surface is covered by water. Of that, 97% is in the Earth's oceans, 2.4% are in polar ice caps and glaciers, and the remaining 0.6% is in the land surfaceâ¦ water areas of the Earth.
Hypertrophic obesity is excessive weight gain in adulthood. Hypertrophic is when the fat cells get bigger. This is as opposed to Hyperplastic obesity, which is the gaining of fat cells. The latter only occurs during childhood, or if the person gains a lot of weight fast.
The Social Security Administration (SSA) defines obesity as a chronic and complex disease that is characterized by excessive accumulation of body fat. Obese adults are those with a body mass index (BMI) of 30 and over. Morbidly obese adults have a BMI of 40 or more.