We all age differently but how many people truly "defy" the natural effects of aging? Now we know:
Bottom Line: We know that genetics and the way we live our lives can/will impact how gracefully we age. That being said there are still those people who just seem to defy their age as they age. Scientists have ID'd these individuals as "Super-Agers". So just how many people are true "super-agers"?
According to an 18 month study published in the Journal of the American Medical Association it's about 5%.
So what makes these people different? The secret is in their think heads. No literally. Perhaps it's ironic that the term "think-headed" has typically been used as a derogatory characterization of someone. For those who do truly mange to defy normal aging trends it's all about their brain's thickness. We're all familiar with the term "gray-matter". The top 5% of agers simply have more of it. Their brains are substantially thicker with "gray-matter" as compared to the norm. As a result the normal effects aging don't take the same toll on the "super-ager's" brain which intern leads to a sharper mind longer and also likely physical benefits that weren't part of this initial study.
So the next time someone tells you that you're think headed - thank them!