Definition
Obesity is excess weight as a result of excessive accumulation of body fat.
Everyone needs some body fat to store energy as heat insulation, shock absorber and other functions. On average women have more body fat than men. Normal comparison between body fat weight is approximately 25-30% in women and 18-23% in men. Women with more body fat than 30% body fat and men with more than 25% are considered obese.
Someone who has a weight 20% higher than the midpoint of the range of normal weight is considered obese. Obesity is classified into 3 groups:
• Obesity mild: 20-40% overweight
• Obesity is: 41-100% overweight
• Obesity weight: excess weight> 100%. Severe obesity was found as many as 5% of the people who are overweight. CAUSE Scientifically, obesity occurs from consuming more calories than needed by the body. Cause of the imbalance between calorie intake and burning is still unclear. erjadinya obesity involves several factors:
- 1st. Genetic factor. Obesity tends to run, thus might have a genetic cause. But family members not only share genes but also diet and lifestyle habits, which could push the occurrence of obesity. Often difficult to separate lifestyle factors with genetic factors. Recent research shows that the average genetic factors affecting 33% of body weight a person.
- 2. Environmental factors. Gene is an important factor in many cases of obesity, but one's environment also play a significant role. This environment includes behavioral / lifestyle patterns (eg what to eat and how often a person ate and how its activity). A person certainly can not change their genetic pattern, but he can change the diet and activity.
- 3. Psychological factors. What's in a person's mind can affect her eating habits. Many people reacted to his emotions by eating.
One form of emotional distress is a negative perception of self. This disruption is a serious problem for many young women who suffer from obesity, and can cause excessive awareness about kegemukannya and discomfort in social interactions.
There are two abnormal eating patterns that could be the cause of obesity is eating in a number of very much (binge) and eat at night (at night eating syndrome). Both diets are usually triggered by stress and disappointment. Binge similar to bulimia nervosa, in which a person ate in a number of very much, except that the binge this is not followed by spewing back what you've eaten. As a result a lot of calories consumed. In the syndrome, eating at night, is the reduction of appetite in the morning and followed by excessive eating, agitation and insomnia at night.
- 4. Health factors. Some illnesses can cause obesity, among others: - Hypothyroidism - Cushing's syndrome - Prader-Willi Syndrome - Several neurological disorders that can cause a person eats a lot.
- 5. Drugs. Certain drugs (eg steroids and some anti-depressants) can cause weight gain.
- 6. Growth factor. Increasing the size or number of fat cells (or both) cause increasing amounts of fat stored in the body. Obese people, especially those who became obese in childhood, can have the fat cells Sampak 5 times more than people whose weight is normal. The number of fat cells can not be reduced, so weight loss can only be done by reducing the amount of fat in each cell.
- 7. Physical activity. Lack of physical activity is probably one of the main causes of the increasing incidence of obesity in the middle of a prosperous society. People who are inactive need fewer calories. Someone who tend to consume foods rich in fat and not doing physical activity that is balanced, will be obese.
