A new book on willpower asserts that it's a muscle. That is, you can strengthen it with practice, and you can exhaust it with stress and overuse. This makes sense, and years of research back the idea.

A scientific squabble over how to define self-control draws from an unlikely source: A story from Greek mythology. Sailing home to Ithaca after the Trojan War, Odysseus longed to hear the Sirens’ ...

Almost everybody faces self-control problems at some point in life. Shedding a couple of extra pounds, turning down the third beer of the night, exercising instead of sitting on the couch watching ...