Get a good education. Get married. Don�t gain weight.These are some of the keys to long life for Zoomer men, according to a US study.In fact, nine factors in all were identified as good predictors of which 50-plus men would live healthily into their 80s and beyond, according to a 40-year study of nearly 6,000 Japanese-American men living in Hawaii. The study, in the Journal of the American Medical Association, concluded men were more likely to remain healthy, vigorous and disability-free at older ages, if they avoided certain risk factors.The risks linked to insulin levels such as being overweight, having high blood sugar, high triglycerides and high blood pressure� are strong indicators of whether men will survive to old age and whether they will be healthy if they do.Men are also more likely to live longer, if they possess a strong grip which indicates overall strength and fitness, have low blood sugar, avoid heavy drinking, and don�t smoke.The study found that men who followed the healthful criteria had an 80 percent chance of living to age 80 and a better than 60 percent of being healthy at that age. On the other hand, those with six or more of these risk factors had less than a 10 percent chance of living in their mid-80s.