Why We Sleep [Matt Walker]

Watch his TED Talk: https://www.youtube.com/watch?v=5MuIMqhT8DMBill Gates on the book: https://www.gatesnotes.com/Books/Why-We-SleepCriticisms of the book: https://guzey.com/books/why-we-sleep/Lack of Sleep ages you 10 years by testosterone"Sleep Spindles" from Deep Sleep act like file transfer from short term memory to long termSleep gets worse as you ageSleeping pills are blunt instruments - electrical stimulation helps betterDaylight savings time causes 20% increase/decrease in heart attacks as we jump forward/backward due to lost sleep70% loss in immunity with 4 hrs of sleepNighttime shift work is carcinogen711 genes distorted on 6 hrs of sleepTips for better sleep:no alcohol/caffeineavoid naps during the dayregularity - bed and wake at same time regularly keep it cool: 18 deg celsius