Sleep is when all the good stuff happens. This is when our bodies get rid of old cells and the brain is revitalized. But what is the actual research that explains why REM and deep sleep are so critical to our health? John Asher, Founder of the Asher Longevity Institute, goes through the parts of sleep in this episode. He covers Alzheimer's, sleep history, and how sleep is the pillar of our health. He and co-host Susan Finch talk about the truth to "just sleep on it" to problem solve, and how deep sleep helps our bodies flush out damaged cells through the lymphatic system. It will make sense to you after you listen to this episode of ALive, "The logic of the parts of sleep."