Photos by (L) Win McNamee/Getty Images, (R) Alex Wong/Getty Images
At the alpha of Barack Obama’s additional term, abounding magazines and newspapers are attractive aback at how the admiral age-old over the aboriginal four years. One time-lapse video, according to Gawker, shows the admiral “Age 10 Years in 5 Years in 2 Minutes.” The Washington Post, meanwhile, shows photos of Obama “Then & Now,” with above White House physician Connie Mariano anecdotic presidents as attractive like they “fast-forwarded eight years in the amount of four years,” apparently because of the accent of the job. Can abiding accent absolutely account aboriginal wrinkles and gray hair?
Forrest Wickman is Slate’s ability editor.
It’s not clear. While cerebral accent can advance to DNA accident associated with aging, it’s not bright whether this accident manifests itself visibly, such as in crow’s anxiety about the eyes or a blanket of argent on the crown. That hasn’t chock-full some account outlets from heralding a articulation amid accent and graying hair. When a 2011 abstraction showed a apparatus through which accent could account DNA damage, accessories in the the Daily Mail, Yahoo, and abroad accustomed the abstraction as affidavit that accent can account arresting aging. “Stress Absolutely Does Make Your Bristles Go Gray, Scientists Find,” proclaimed the banderole in the Telegraph. However, the abstraction had little or annihilation to do with gray hair, with the words “gray” and “hair” never alike appearing. Furthermore, the abstraction acclimated adrenaline, not stress, and it was conducted on mice, not humans. As William Saletan acicular out in Slate in 2009, abounding added studies accept activate no accord amid aboriginal graying and aging. For example, a abstraction of 20,000 men and women in Copenhagen could acquisition no accord amid deaths from affection ache and apparent signs of aging, such as balding, bad-tempered skin, and gray hair. Instead, best graying seems to be bent by analysis and has little to do with one’s bloom or adjacency to the grave. If presidents tend to go gray while in office, it may artlessly be because best accustomed graying happens during the aforementioned years in which presidents serve in office.
If accent can absolutely account bodies to go gray and pruney added quickly, scientists accept some leads on a few mechanisms that ability be responsible. Accent has been apparent to associate with beneath telomeres, which are caps that assure the ends of chromosomes. When the telomeres, which are generally likened to the casings that assure the ends of shoelaces, are gone, the chromosomes can activate to abatement afar like a fraying shoelace. This possibly leads to corpuscle accident and diseases associated with aging. Added potentially damaging processes accommodate blaze and glycation, admitting the accord amid these processes, stress,
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