Matthew-Nock“What drives people to harm themselves, and how best to dissuade them from doing so, remains a mystery, says professor of psychology Matthew Nock. ‘More people die by their own hand than by someone else’s’—suicide is more common than homicide. ‘It’s a huge societal problem, a huge clinical problem, a huge research problem, and we know so little about it.’”

Read more in the Jan-Feb 2011 issue of the Harvard Magazine.