68 Matt Walker - Why Did We Evolve to Sleep?

On the show this week we talk to Matt Walker, Principal Investigator at UC Berkeley’s Sleep and Neuroimaging Lab. Walker opens our eyes to exactly how important (and bizarre) sleep is—from the insane effects not sleeping enough can have on you both physically and cognitively, to the fact that, after having fought through ages of natural selection, it’s amazing our brains still need it at all. Once again we welcome back guest host Kishore Hari, Director of the Bay Area Science Festival. You can f...