Why We Love, Why We Cheat, Helen Fisher, TED Talks

Anthropologist Helen Fisher takes on a tricky topic love and explains its evolution, its biochemical foundations and its social importance. She closes with a warning about the potential disaster inherent in antidepressant abuse. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world s leading thinkers and doers are invited to give the talk of their lives in 18 minutes including speakers such as Jill Bolte Taylor, Sir Ken Ro