If you think that how long you’ll live is based on how long your grandparents and parents live, you’re only partly right. While genetics certainly have an impact, you have more control than you might assume. “By the time you turn 55, only about 30% of how quickly you age is based on your genes, as compared to 50% when you’re younger—the rest is due to your lifestyle choices,” says Michael Roizen, MD, chief wellness officer at the Cleveland Clinic.
To figure out about how many years certain habits can add to your life, Dr. Roizen created the RealAge test, which uses data from hundreds of studies by groups including the Centers for Disease Control and Prevention and the National Center for Health Statistics.
With his help, we’ve gathered the most important habits and estimated how much longer each one may extend your life.
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