The so-called ideal weight, also known as the standard weight, is measured using scientific principles, and their height closely related to the weight data, can be briefly calculated as follows: 1, standard weight (kg) = height (cm) – 105 2, the actual weight of more than 10% of the standard weight for overweight, more than 20% for obese. 3, the current medical profession and often to the body mass index to express the ideal weight, body mass index (BMI) = height (kg) / weight (m) 2 4, body mass index: women > 25 for overweight, > 30 belong to obese; 5, men > 28 for overweight, > 31 for obese. The current health medical research found that overweight is often obese pre-performance, obesity not only brings inconvenience to life, work, more importantly, is detrimental to health, obesity, especially the cardiovascular system has a negative impact.