TED Talks Sleep, Circadian Rhythms

The far-reaching, free exchange of ideas known as TED takes on sleep and circadian rhythms in the latest streaming TEDtalk.In the video, environmental journalist Jessa Gamble shares some things she picked up while living in the 24-hour darkness of northern Canada in the wintertime. Gamble praises the benefits of setting an early bedtime, and waking for a couple hours in the middle of the night,