The  young man’s mother fed his symptoms into her searches, trying to find the combination that would turn up a similar story: long periods of sleeping; feeling unreal, anxious, suspicious, reports The New York Times Magazine.

Kleine-Levin is a rare and still-mysterious disorder. Estimates are that there are one to five cases per million people. It usually starts during adolescence, and boys are four times as likely as girls to be affected.

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