Sitting more than three hours a day can take two years off your life

http://www.usatoday.com/news/health/story/2012-07-09/sitting-less-could-extend-life/56117870/1

http://neurosynthesisarchives.wordpress.com/2011/01/20/the-extreme-dangers-of-sitting/ / sedentary exercise heart muscles walk disease capillaries lined fat burning enzyme lipoprotein lipase /