Ep 50: Why do we spend 1/3 of our lives asleep? | INNER COSMOS WITH DAVID EAGLEMAN

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Ep 50: Why do we spend 1/3 of our lives asleep? | INNER COSMOS WITH DAVID EAGLEMAN
Why do we spend 1/3 of our lives in the strange doppelganger state of sleep? Can we die from a lack of sleep? How long is it possible to keep yourself awake (and why does the Guinness Book of World Records no longer track that)? Why are some people night owls and some morning larks? What does any of this have to do with lightless underground caves, or with the length of a day on Mars? Join this week's episode to learn everything you've ever wanted to know about sleep and what your brain is actually doing during this time. This is the first of a 3-parter: next week we'll dive into dreams, and the week after that into lucid dreams.
Original Air Date: March 11, 2024
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Contents:
00:00:56:18 - 7:58 - Intro
7:58 - 17:42 - Chapter 1: Brain Activity During Sleep
17:42 - 30:28 - Chapter 2: Circadian Rhythm
30:28 - 42:37 - Chapter 3: Why Do Brains Sleep? (Four Theories)
42:37 - 48:59 - Chapter 4: Sleep's Affects on Memory
48:59 - 55:49 - Chapter 5: Sleep Deprivation
55:49 - 1:09:26 - Chapter 6: Sleep Disorders
1:09:26 - 1:14:33 - Chapter 7: Wrap-Up (Kenneth Parks Case)
1:14:33 - 1:15:12 - Outro
Neuroscientist and author David Eagleman discusses how our brain interprets the world and what that means for us. Through storytelling, research, interviews, and experiments, David Eagleman tackles wild questions that illuminate new facets of our lives and our realities.
New episodes weekly on iHeartRadio.
TAGS: #DavidEagleman #InnerCosmoswithDavidEagleman #InnerCosmos #Science #Neuroscience #Neuroscientist #Eagleman

[@richmonddoku]

Short Note;
1. Rapid Eye Movement (REM) Sleep: Your brain is active like how it will be when it is awake. So, it is characterized predominantly by dreaming. Now, everyone dreams but some find it hard remembering it.
VLPO is responsible for arousing our sleep. When it is damaged, people get insomnia.
How much you sleep is mostly determined by what activity you did during the day.
All animals have circadian rythmn inbuilt in us. Superchaomatic nucleus in our cells is what controls the circadian rythmn.
Circadian rythmn is an approximate of 24 hours and it is influenced by light.
So if we evolved somewhere else where our light wasn't a 24 hours pattern, we could have had 72 etc.
2. Non-REM sleep
Sleep deprivation has been found to affect the mind (cognitive and affective) rather than the body. Doctors found that when they deprove themselves of sleep, they misread a lot of things.

[@rharpman]

Another great episode, muchos gracias

[@guillobuteler]

Great episode! Our version of the expression "to sleep on it", which I think is funnier, is "consultar con la almohada". The "darkness protection" theory seems to fail to take into account the fact that nighttime is usually significantly longer than sleep. Pleasant dreams!

[@michelles9897]

✨

[@danwool]

Is there any benefit, however small, from micro-sleeps?

[@andanssas]

58:15 "to never sleep again" I wonder if someone invested on it after knowing that family's case. Amazing that mad cow disease brain lesions were similar... Thank you ❤

[@criscris5061]

Espectacular. I remain a little afraid

[@fifthsentinel]

I recommend exploring a podcast episode about lucid dreaming-it's a fascinating topic!

[@guillobuteler]

As per the intro, and the end, that will be addressed in two weeks in part 3.

[@fifthsentinel]

​guillobuteler somehow I managed to miss it lol

[@DanielSanchez-nj2oj]

Absolutely fascinating as always!

[@Samhenrycurtis]

Can’t wait to see you in SLC in April!