The psychological price paid by many entrepreneurs?

Quoting Jessica Bruder (AFoundersNotebook):

According to researchers, many entrepreneurs share innate character traits that make them more vulnerable to mood swings. “People who are on the energetic, motivated, and creative side are both more likely to be entrepreneurial and more likely to have strong emotional states,” says Freeman. Those states may include depression, despair, hopelessness, worthlessness, loss of motivation, and suicidal thinking.

More at the link.