Here is Helen Fisher’s TED Talk from TED 2008. Helen’s bio on the TED website reads,
Anthropologist Helen Fisher studies gender differences and the evolution of human emotions. She’s best known as an expert on romantic love, and her beautifully penned books — including Anatomy of Love and Why We Love — lay bare the mysteries of our most treasured emotion.
This exploration of the brain’s response to love will hopefully be a fun, nerdy, and educational way to think about your loved ones during this Valentine’s Day week. Enjoy.