Matt Walker is a sleep scientist at Berkeley, author of Why We Sleep, and the host of a new podcast called The Matt Walker Podcast. Please support this podcast by checking out our sponsors:- Stamps.com: https://stamps.com and use code LEX to get free postage & scale- Squarespace: https://lexfridman.com/squarespace and use code LEX to get 10% off- Athletic Greens: https://athleticgreens.com/lex and use code LEX to get 1 month of fish oil- BetterHelp: https://betterhelp.com/lex to get 10% off- Onnit: https://lexfridman.com/onnit to get up to 10% off

EPISODE LINKS:Matt's Podcast: https://themattwalkerpodcast.buzzsprout.com/Matt's Twitter: https://twitter.com/sleepdiplomatMatt's Instagram: https://www.instagram.com/drmattwalkerMatt's Website: https://www.sleepdiplomat.com/

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OUTLINE:Here's the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time.(00:00) - Introduction(09:56) - Putin moment: Lex takes Matt's sunglasses(10:17) - Fascination with sleep(14:26) - Why do we sleep?(22:58) - Computer vision for driver assistance(32:19) - Consciousness is fundamental(40:25) - Lex on human to robot connection(42:52) - Scent of a Woman is better than "John Wick"(54:33) - Distinction between coffee and caffeine(1:20:17) - The science of 'sleeping on it'(1:34:10) - Lex on his sleeping schedule(1:59:14) - Chronotypes(2:06:44) - How to overcome insomnia(2:24:07) - Diet and sleep(2:33:03) - Where do dreams come from?(2:46:41) - How sleep affects emotions(2:53:35) - Meaning of life