The Key To A Healthy Longevity - I Am...Not I Should "Remember that there's no longevity in "should." - Melissa Steinus What are you doing to increase the longevity of your life? Is it all in your genes or do you play a part in how long you live? I think they are both involved in your life expectancy. In fact, a recent study led by the Harvard T.H. Chan School of Public Health ...