People who feel younger than their years tend to live longer skynesher/Getty Images
“AGE is an issue of mind over matter. If you don’t mind, it doesn’t matter.”
This nugget of wisdom, often attributed to Mark Twain, has been turned into many an inspirational internet meme over the years. As a 51-year-old who is starting to feel the gathering momentum of the inevitable slide, it strikes me as little more than a platitude that makes people feel better about getting old.
But according to a growing body of research, there is more to it than that. Subjective age – how…