Every hour spent sitting idle in front of the television raises the risk of premature death from heart disease by 18%. <http://latimesblogs.latimes.com/booster_shots/2010/01/a-new-definition-for-sedentary-behavior.html>http://latimesblogs.latimes.com/booster_shots/2010/01/a-new-definition-for-sedentary-behavior.html www.peoplewho.org