According to the National Alliance on Mental Illness, one in 5 American adults suffers from some form of mental illness every year. That’s a startling number, but for entrepreneurs, it’s not startling enough.

That’s because, according to a recent study from the University of California-Berkeley's Michael Freeman, entrepreneurs are 50 percent likelier than the average American to suffer from mental illness.

In the case of some disorders, that likelihood goes up exponentially, the study reported: Entrepreneurs are 10 times likelier to exhibit bipolar syndrome, for instance, and twice as likely to have suicidal thoughts or be hospitalized for psychiatric reasons.

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