The association of changes in physical-activity level and other lifestyle characteristics with mortality among men.

摘要: Background Recent trends toward increasing physical exercise, stopping cigarette smoking, and avoiding obesity may increase longevity. We analyzed changes in the lifestyles of Harvard College alumni associations these with mortality. Methods Men who were 45 to 84 years age 1977 had reported no life-threatening disease on questionnaires completed 1962 or 1966 again classified according lifestyle characteristics between first second questionnaires. their level activity, blood pressure, body weight, relation factors mortality 1985. Results Of 10,269 men, 476 died during this period (which totaled 90,650 man-years observation). Beginning moderately vigorous sports activity (at an intensity 4.5 more metabolic equivalents) was associated a 23 percent lower risk death (95 confidence interval, 4 42 percent; P = 0.0...