On The Mind - This Is What Your Brain Is Doing When You Sleep

Sleep has remained a mystery throughout the history of neuroscience and it isn’t until recently that technology enabled us to see what’s occurring in the brain when we sleep. In this episode of HuffPost’s original series on the inner workings of the mind, neuroscientist Professor Jeff Iliff explains why it’s important to get a good night’s sleep and how it helps the brain function better.