PERSONAL HEALTH; Living Longer, in Good Health to the End

You don’t have to be an actuary or funeral director to have noticed the striking increase in the length of many Americans’ lives. The obituaries in this or any other newspaper show a growing number of people who depart this world in their late 80s or 90s, or even at 100 or older. The fastest-growing segment of the population consists of people over 85, and by 2050 some 800,000 Americans will have celebrated their 100th birthday.

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