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Visit to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more. Have you ever misplaced something you were just holding? Completely...
You know you need to get enough sleep, but the question remains: How much is enough? Sleep scientist Matt Walker tells us the recommended amount for...
One of the best things that you can do to boost your immune system is head to bed, says sleep scientist Matt Walker. It can even...
It’s not just your imagination — you’re more irritable when you’re low on zzzzs. Sleep scientist Matt Walker explains how our nightly slumber affects the emotional...
Caffeine wakes you up, and alcohol makes you nod off, right? It’s not that simple. Sleep scientist Matt Walker takes us into the eye-opening ways that...
Did you know you go on a journey every night after you close your eyes? Sleep scientist Matt Walker breaks down the difference between REM (Rapid-Eye...
Dr. Ravi Aysola helps debunk (and confirm!) some common myths about how we sleep. Do we only ever sleep with our eyes closed? Does everyone need...
Caffeine is the most widely used psychoactive drug on the planet. Like all good things in this world, it should be consumed in moderation—but PopSci editors...
