Gray hair is the tell-tale sign of aging. But it wasn't until March of 2016 that scientists discovered a gene that plays a role in the hair graying process. As Dr. Kaustubh Adhikari, the lead author of the study that outlines this discovery, explained: "We already know several genes involved in balding and hair color but this is the first time a gene for graying has been identified in humans, as well as other genes influencing hair shape and density."
What Is Aging?
...and can we slow it down?
Key Facts In This Video
What drives the process of aging from a cellular perspective is still largely a mystery. 00:27
After age 30, your chances of dying double every eight years. 01:37
Caloric restriction has been observed to extend the lifespan of rodents by up 50%. 02:55
Why Does Hair Grow so Long on Our Heads?
The Science Of Hair Loss And Balding
Two more tell-tale signs of aging.
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