Harvard did the longest study on 80 year olds and the greatest predictor of longevity they found was…. – The Times of India

What keeps humans healthy and guarantees a long and fulfilling life? For decades, the answer to this question was scattered in opinions. People around the world debated whether it is a disciplined routine, a healthy diet or financial security. Surprisingly, Harvard researchers, through one of the longest running studies, have found the answer and it…