#11: Sleep & Caffeine – Part 2

Matt breaks down the conflict between wall clocks and our biological rhythms, explaining how latitude and longitude dictate our rest. Latitude alters seasonal daylight and melatonin - though artificial light mutes this natural cycle - and broad time zones create "social jet lag." ...  Show more

Matt digs into the neuroscience of déjà vu, reframing it as a sign of a healthy brain performing real-time error correction. Using a "doorman" (familiarity) vs. "concierge" (recollection) analogy, Matt explains how memory systems misfire. When the rhinal cortex signals recognitio ...  Show more

In this moment, sleep expert and author of ‘Why We Sleep’, Matthew Walker discusses the 3 main reasons why caffeine is so terrible for sleep. Firstly, is that the impact of caffeine lasts long after drinking a cup of coffee. Caffeine has a quarter life of between 10 to 12 hours, ...  Show more

In this episode, I explain how to use caffeine to enhance mental and physical health and performance, including the optimal dosages and intake schedules for caffeine. I explain how caffeine powerfully reinforces the consumption of certain foods and drinks—thereby increasing how m ...  Show more

This is episode 3 of a 6-part special series on sleep with Dr. Matthew Walker, Ph.D., a professor of neuroscience and psychology at the University of California, Berkeley, and leading public educator about the role of sleep in health, disease and performance.  We explain how our ...  Show more

Are you one of the billions of people around the world who starts your day with a freshly brewed and deliciously aromatic cup of coffee or tea or maybe even hot chocolate? Or are you caffeine-avoidant, looking on at your coffee-addicted friends with confusion and maybe even pi ...