- The optimal number of hours per year may drop below one hundred as we age. In one study of American adults over sixty-five, those
who volunteered between one and forty hours in 1986 were more likely to be alive in 1994 than those who volunteered zero or more than
forty hours. This was true even after controlling for health conditions, physical activity, religion, income, and a host of other factors that
might influence survival.
michael s
(Michael S)
#1