Physical ________ and poor _______ account for an estimated 300,000 deaths per year, second only to ________ use among preventable causes of death. _________ ________ reduces the risk of premature _______ in general, and of coronary heart disease, hypertension, colon cancer, and _______ in particular. Regular physical activity in _______ and adolescence improves strength and _________, helps build healthy bones and ________, helps control weight, reduces anxiety and ______, increases self-esteem, and may improve blood pressure and __________ levels. ________ experiences with physical activity at a ______ age help lay the basis for being regularly active throughout ______. Nearly one-third do not regularly _______ in ________ physical activity, and only 32% attend ________ _________ class daily. Participation in physical activity _______ strikingly as children age.