Obesity is a major problem for public health due to weight gain from imbalance between energy intake and energy expenditure. According to published data by World Health Organization (WHO), obesity was increased rapidly from outset of last decades of 1900. Prevalence of obesity is accepted as a socioeconomic challenge in present decade. Based on this topic, in particular since 1980 decade, if this trend cannot be reversed or at least restrained, high levels of obesity will naturally lead to increases in the prevalence of chronic diseases, with enormous economic and personal costs. Epidemiological reports show, in 2008, approximately 35% of adults were overweight (body mass index [BMI] ≥25-29.9kg/m2) (34% men and 35% of women). The worldwide obesity prevalence has increased meaningfully between 1980 and 2008. In 2008, 10% of men and 14% of women in the world were obese (BMI≥30kg/m2), compared with 5% for men and 8% for women in 1980. An estimated 205million men and 297million women over the age of 20 were obese a total of more than half a billion adults worldwide. Since physical activity rates over the past three decades are essentially unchanged or lower, it would seem that increased body mass has limited the weight gain due to increased energy output. As a result, obesity prevention has become an international priority. Changes in life habits and patterns, such as dietary behaviors, advancing in technology, relief, sedentary life, and decrease of lifestyle physical activities, results in an increase of obesity and weight gain among men and women. Obesity is related to increased morbidity and mortality rates due to coronary heart disease (CHD), osteoarthritis, infectious disease and cancers. Excessive body weight, in addition, increases the risk of hypertension, unhealthy lipid profile, menopauses, gallbladder disease, diabetes, some cancers, psychosocial experiences, and many other causes of chronic morbidity. Obesity, in addition, involves major expenditure and therefore represents a socioeconomic health problem of the highest magnitude. It is clear that obesity as worldwide problem results in considerable morbidities and decrease individuals abilities for keep their good health for live. In this review we try that augment this history argument, epidemically and represent the relation between physical activities and weight control among men and women. body fatness and consequent morbidity and mortality. Keywords12,13 On base of BMI data, men have more BMI when compared with women, generally. However, more men are overweight than women, but in almost more women than men are obese through the world.14 Same to BMI, Waist Circumference (WC) is a useful predictor, commonly, for Coronary Heart Disease (CHD) risks and undesirable profile of blood fats (Table 1). It is reported that there is a clear relation between the accumulation intra-abdominal fat and WC and increased hazards.5 On this base, WHO suggested WC measures for predict of hypertension and lipid disorders, particularly low high density lipoprotein...
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