Can high levels of stress really make you age faster? That seems to be the case judging by all the gray hair President Obama has sprouted over the course of his time in the White House. Researchers, though, have more scientific ways to measure aging, via telomeres — the caps at the end of our cells’ chromosomes that protect DNA from damage. These caps shorten over time, and a new study suggests that a common form of anxiety is associated with shorter telomeres and perhaps an earlier risk of dying.
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