Generally speaking, the human body is a marvel of symbiotic harmony, with microorganisms thriving in our guts and mouths, and living on our skin without us even noticing. Occasionally though, things go awry, resulting in unpleasant reactions like the sinister-sounding seborrheic dermatitis, more commonly known as dandruff. The itchy, flaky scalp condition is caused by the body's reaction to a naturally occurring species of yeast called Malassezia and, while not life-threatening, no one wants it. Luckily, it's easy to treat and Dr. Jessica Krant, founder of Art of Dermatology, has some tips to keep your head and shoulders clear.
Get some rest
It's not clear why stress and exhaustion can cause dandruff, but it may have something to do with the body's production of the hormone cortisol. "When this hormone is elevated, the body is more susceptible to illness and rashes, including inflammatory conditions like acne, psoriasis, and seborrheic dermatitis," says Krant. So try to relax and aim for 8 hours of sleep.
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