Physical Exercise And Dieting For Weight Control

J F Babalola

Abstract


Obesity is when a person is carrying too much body fat for his or her height and sex.  A person is considered obese if he or she has a Body Mass Index (BMI) that is 30 or more. Obesity can happen when a person eats more calories than is burnt off over a period of time. Medical researches have associated some health risk factors with individual’s body mass index (BMI).  Obesity is a major risk factor for diseases of the cardiovascular system, this include coronary heart disease such as hypertension, congestive heart failure, high levels of blood lipids, atherosclerosis, strokes, osteoarthritis and varicose veins.  The rate at which calories from food and drink are burnt off is referred to as metabolic rate. This is often faster during growth spurts and puberty, but reaches a fairly steady rate by adulthood.  Metabolic rate can be increased if the individual engages in active physical exercise. People who are very active generally have a higher metabolic rate than those who are inactive because they burn off calories faster through energetic activities. If the amount of calories provided by the daily food intake is more than the calories that is burnt off, the body will store the extra energy as fat leading to overweight and obesity.

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