Posted on February 3, 2011 Phys Ed: More Bone (and Less Fat) Through Exercise By GRETCHEN REYNOLDS http://well.blogs.nytimes.com/2011/02/02/phys-ed-more-bone-and-less-fat-through-exercise/ Need more  motivation to get to the gym, or just up off the couch…. then read Gretchen Reynolds article in the NY Times.