From an academic study covered in the Columbia Journalism Review:

Published in the winter 2007 volume of Journalism History, "Depression, Drink and Dissipation" finds that almost half of the best people to ever push a noun against a verb in newsprint were debilitated by depression, serious anxiety, or bipolar disorder; over a third were titanic drunks, pill-poppers, or opium-addicts; nearly a third were serial philanderers, and a sizable bunch were misogynists, man-eaters, or violent bullies.

I knew there was a reason I got into this business.

(Linkprops to sober journalist John Robinson)