Although it has nothing to do with international boundaries or population size, it is the people of America who are expanding at the waistline. In the United States thirty three percent of the adult population are obese. One is considered obese if one is more then twenty percent over ideal body weight. The main cause of obesity in humans is the calorie. A calorie is a unit used to measure the energy value of food and the energy used by the body to maintain normal functions.

When the calories from food intake equal the calories of energy the body uses, weight remains constant. When more alories are eaten than the body needs, the body stores the additional calories as fat, which causes subsequent weight gain. Consuming about thirty five hundred calories more than what the body needs results in a weight gain of one pound of fat. Bill Phillips, a leading authority in health and nutrition states, The best way to not be obese is a healthy diet and lifestyle..

Your diet will greatly impact on the way you look, the way you approach things and the amount you will be able to do physically (Phillips 135). A good balanced diet consists of the five major food groups. The five ajor food groups are: Bread and Cereal, Fruit, Vegetables, Meat and Meat Alternatives, and the Milk group. The Bread and Cereal groups are recommended for six to seven servings per day. The Fruit group is recommended for two or three servings per day. The Vegetable group is recommended for four servings a day.

Meat and Meat Alternatives are recommended one serving per day. The Milk group for a young, or still growing person is of much greater importance then when the person has stopped growing due to the amount of calcium one needs when he or she is growing. The reason for this is while the body is growing, your body needs at and dairy products for energy and nutrients (Phillips 258). Some people who are obese cannot help it. The Hypothalamus, a part of the brain, important because it regulates the internal activities of the body.

Although the Hypothalamus constitutes less than one percent of the total volume of the brain, it has an important influence on many of the body s functions. These influences are: sexual behavior, emotions, hormone production, and the autonomic nervous system. The Hypothalamus plays an important role in regulating feeding behavior too. George Forbes a Hormonal expert states, Experts have performed experiments on rats that has demonstrated if the middle of the Hypothalamus is damaged, the rat over eats and becomes obese; damage the lower part of the Hypothalamus and the rat will starve itself and die Forbes 89).

The Hypothalamus also plays an important role on the Cardiovascular system along with the rest of the Autonomic Nervous System. The effect is vital for the coordination of mind and body for it is responsible for the physical changes required before exercise. Many other problems can come from being overweight like; especially high blood pressure, high cholesterol and diabetes (Forbes 90). Diets, the most common and conservative treatment for obesity, utilizes a nutritionally balanced, low calorie diet.

Bill Phillips, a leading Health and Nutrionist Expert states; Overall advice to somebody who is battling weight and has been doing so for a long time. Simply reduce your dinner plate once with a sensible portion and then be done. Then, everyday find a way to walk for at least fifteen minutes as a starting point to increased exercise. (Zulak 48). Most health care professionals and commercial weight-loss programs recommend diets consisting of twelve-hundred to fifteen-hundred calories per ay.

The proportions usually are sixty percent carbohydrate, thirty percent fat, and ten percent protein. Joseph Suttie, an expert on Human Nutrition states, Without further treatment, however, patients usually regain one-third of the weight in the following year (Suttie 45). In some states obesity is becoming such a problem that movie theaters and subways are having to increase seat size and door width to accommodate people who are obese. Through all of my years of training and diet I have found that diet is the most important factor because you are what you eat.

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