Obesity is a medical condition in which excess body fat has accumulated to the extent.

1. Obesity
Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have a negative effect on health, leading to reduced life expectancy and or increased health problems.In Western countries, people are considered obese when their body mass index BMI ,a measurement obtained by dividing a person s weight by the square of the person s height, exceeds 30 kg m2, with the range 25 30 kg m2 defined as overweight. Some East Asian countries use stricter criteria.
Obesity increases the likelihood of various diseases, particularly heart disease, type 2 diabetes, obstructive sleep apnea, certain types of cancer, and osteoarthritis.Obesity is most commonly caused by a combination of excessive food energy intake, lack of physical activity, and genetic susceptibility, although a few cases are caused primarily by genes, endocrine disorders, medications, or psychiatric illness. Evidence to support the view that some obese people eat little yet gain weight due to a slow metabolism is limited. On average, obese people have a greater energy expenditure than their thin counterparts due to the energy required to maintain an increased body mass.

2. How common is obesity
Obesity has reached epidemic proportions in the United States. Over two thirds of adults are overweight or obese, and one in three Americans is obese. The prevalence of obesity in children has increased markedly. Obesity has also been increasing rapidly throughout the world, and the incidence of obesity nearly doubled from 1991 to 1998.

3. What causes obesity
The balance between calorie intake and energy expenditure determines a person s weight. If a person eats more calories than he or she burns metabolizes , the person gains weight the body will store the excess energy as fat . If a person eats fewer calories than he or she metabolizes, he or she will lose weight. Therefore the most common causes of obesity are overeating and physical inactivity. Ultimately, body weight is the result of genetics, metabolism, environment, behavior, and culture.

4. symptoms
Obesity is likely when an individual s body mass index BMI is 30 or higher. Your body mass index is calculated by dividing your weight in kilograms kg by your height in meters m squared.For most people, BMI is a reasonable estimate of body fat. However, BMI doesn t directly measure body fat, so some people, such as muscular athletes, may have a BMI in the obese category even though they don t have excess body fat. Ask your health care provider if your BMI is a problem.

5. When to see a doctor
If you think you may be obese, and especially if you re concerned about weight related health problems, see your doctor or health care provider. You and your provider can evaluate your health risks and discuss your weight loss options.

6. Risk factors
Obesity occurs when you eat and drink more calories than you burn through exercise and normal daily activities. Your body stores these extra calories as fat. Obesity usually results from a combination of causes and contributing factors.

7. Types of Obesity
Type 1 obesity is not caused by a disease and, in most cases, it is caused by excessive eating habits and lack of exercise. Type 2 obesity accounts for less than 1% of obesity cases and is caused by a disease; abnormal weight gains occur with type 2 obesity even when little is eaten.

Cushing syndrome, hypothyroidism, polycystic ovarian disease, and insulinoma, are some internal secretion diseases that cause type 2 obesity. Cushing syndrome is characterized by thinning arms and legs and abdominal obesity, whereby fat gathers around the body, and in some instances, the hypodermis cracks from sudden weight gain causing line marks on the abdomen, groin, underarm, and back. Persons with hypothyroidism experience a drop in their metabolism, and weight gain occurs as a result of low calorie consumption. Type 1 obesity can be treated with general obesity treatment methods like simultaneous dietetic treatment and exercise. But type 2 obesity requires that the underlying disease be treated first. Usually, obesity goes away naturally after the underlying disease has been treated.

8. Self Care at Home
Any good diet plan will include exercise. It helps to increase metabolism and is one less opportunity to eat during the day. You should exercise for at least 30 minutes, five times a week. Regular exercise also helps your heart and lungs and lowers triglyceride levels that can cause heart disease. It also increases the HDL good cholesterol levels. Even simple measures such as taking the stairs instead of the elevator and short walks eventually add up to a lot of calories burned. Commercial fitness programs such as Boot Camp can help you start or improve upon a fitness program.

Group support programs such as Weight Watchers or Take Off Pounds Sensibly, known as TOPS, provide peer support and promote healthy habits.

9. Obesity Treated
Successful weight loss treatments include setting goals and making lifestyle changes, such as eating fewer calories and being physically active. Medicines and weight loss surgery also are options for some people if lifestyle changes aren t enough.

10. Prevented
We have choices in life, for example to smoke or not to smoke, and these choices affect our health. However, eating is essential and choosing not to would create serious health risks 443 Koplan . We can choose what to eat and what not to eat. Today more than thirty percent of teenagers under the age of nineteen are overweight in addition to sixty percent aged twenty years and older 463 Crister . Currently, America is the number one nation with a weight problem. There are many causes of obesity today. People need to be educated as to what promotes obesity and then begin preventative measures including, but not limited to, exercising, dieting and practicing self control when it comes to eating.

The key item in preventing obesity is exercising. Exercising helps in numerous ways it keeps the body in shape and prevents related health problems caused by being overweight. In the fitness arena, the saying is

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