Fat people is long, long life or Thin Man

There is a saying in Chinese called "old money Nanmai thin." Do not know if our ancestors had this to say when there is not done any scientific study, but these words now on, or very far-sighted.
And the fat on the Thin Man Who longevity, it was not yet see the system had been reported. However, the domestic life of the elderly in the investigation, we find that such a phenomenon, that is, the longer and more elderly people to build thin and small, little overweight, obesity, let alone the fact that this appears to have indirectly illustrates the problem. According to a survey of the United States, with the increase in the degree of obesity, obesity increased mortality. Investigators compared the same age group were obese and normal mortality found that more than a normal body weight per 4.5 kilograms, the death rate increased by 8%. Compared with normal weight, one marked more than 50% of body weight, the death rate increased by 30%; 100% more than the standard weight, its mortality rate than the normal 150% increase. A number of foreign insurance companies will levy a fat face amount of insurance is generally higher than those of normal weight, and with varying degrees of weight gain and to distinguish between. Of course, this would constitute a "weight discrimination", we do not know. However, it appears that we should "have the money to the old Nanmai thin" at the back, along with "Obesity is the enemy of longevity," this sentence is more realistic, more comprehensive.
Shouzi obese than those who live longer, they are possibly suffering from obesity and hyperlipidemia, high blood pressure, coronary heart disease, cerebrovascular disease, diabetes, the incidence of the disease was significantly higher than those related to thin body.