In this clip the Dr. Mattew Walker talks about the sleep, specifically, he tells us about deep sleep, and what to do to optimize it and be able to take advantage of it. Specifically, it tells us what exercise to do before bed to get the most out of deep sleep. SUBSCRIBE SO YOU DON'T MISS VIDEOS LIKE THIS #sleep #sleephacks #andrewhuberman #sleeping #deepsleep #deepsleepmeditation #health #fitness #healthylifestyle