Monday, July 16, 2007

OBESITY

People gain weight when the body takes in more calories than it burns off. The amount of weight gain that leads to obesity doesn't happen in a few weeks or months. Because being obese is more than just being a few pounds overweight, people who are obese have usually been getting more calories than they need for years.
many problems have solved by the treatment.
Genes - small parts of the DNA that people inherit from their parents and that determine traits like hair or eye color - can play an important role in this weight gain. Some of your genes tell your body how to metabolize food and how to use extra calories or stored fat. Some people burn calories faster or slower than others do because of their genes.

Obesity can run in families, but just how much is due to genes is hard to determine. Many families eat the same foods, have the same habits (like snacking in front of the TV), and tend to think alike when it comes to weight issues (like urging children to eat a lot at dinner so they can grow "big and strong"). All of these situations can contribute to weight gain, so it can be difficult to figure out if a person is born with a tendency to be obese or overweight or learns eating and exercise habits that lead to weight gain. In most cases, weight problems arise from a combination of habits and genetic factors. Certain illnesses, like thyroid gland problems or unusual genetic disorders, are uncommon causes for people gaining weight. the obesity leads to several incurable diseases

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