Washing your hands is only half the battle

"Dr Snelling and her team found that rubbing the hands together whilst using traditional hand dryers could counteract the reduction in bacterial numbers following handwashing."
http://www.news-medical.net/news/20100907/Researchers-quantify-effects-of-drying-to-measure-bacteria-after-hand-wash.aspx

Healthy lifestyles, genetics, and youth

"Two large studies from Northwestern Medicine confirm a healthy lifestyle has the biggest impact on cardiovascular health. One study shows the majority of people who adopted healthy lifestyle behaviors in young adulthood maintained a low cardiovascular risk profile in middle age. The five most important healthy behaviors are not smoking, low or no alcohol intake, weight control, physical activity and a healthy diet. The other study shows cardiovascular health is due primarily to lifestyle factors and healthy behavior, not heredity."
http://www.sciencedaily.com/releases/2010/11/101115151954.htm