Few occupations today require vigorous physical activity and most people spend their leisure time involved in sedentary activities such as reading and watching television.
Exercise plays an important role in weight control.
It helps control appetite and burns more calories than dieting alone. Although most people know that exercise is good for them, many do not realize the dangers of not exercising. A number of health problems are linked to excess body fat including premature coronary heart disease , high blood pressure , sudden death, reduced fertility, osteoporosis , diabetes , arthritis and some forms of cancer . Many psychological and social problems are also linked to obesity such as poor self-image, feelings of inferiority, social isolation, loss of mobility, increased absences from work and social events, accident proneness, and also the possible interference with diagnosis of other health problems. Obesity is a serious health problem that can be helped with a sensible diet and exercise program.