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.

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 ...

These are comments I might get when people learn about my lifestyle. I’m one of those annoying people who eat lots of fruits and vegetables, exercise five times a week, save a portion of their salary, ...

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’ ...