researchers have observed that centenarians tend to be in pretty good health overall—which, again, is not what most people expect. This doesn’t mean that everyone who lives that long will be playing golf and jumping out of airplanes, but Perls’s ninety-five-and-older study subjects scored very well on standard assessments of cognitive function and ability to perform those tasks of daily living we mentioned in chapter 3, such as cooking meals and clipping their own toenails,
