Posted on April 27th, 2012, 9:50 am
![]() New York Times (blog) | New York Times (blog) The report, in the April 24 issue of Neurology, included 716 people, average age 82, without cognitive impairment. Each wore a wrist actigraph, a device that measures movement, for about 10 days to establish his or her usual level of daily physical ... |