03/31/2015 08:04 am ET Updated Mar 31, 2015

A Fifth of College Students May Have ‘Exploding Head Syndrome'

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Last May, Melissa spoke with a guy who has "exploding head syndrome" — a strange and little-understood condition in which sufferers hallucinate sudden, loud noises when they're falling asleep or waking up. "[I]t sounded to me like someone literally put a hand grenade in the wood stove that’s in my living room, and it just blew up," he told her, describing the first time he experienced EHS. "I mean, I hit the deck."

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