REM Sleep
topic on 4 shows · 11 statements across 6 episodes
the Knowledge Project 
My First Million 
the Neon Show 
Capital Allocators
11 statements about REM Sleep, every show
Johnson: Eating dinner at 5 PM halves deep and REM sleep
“When I eat my last meal of the day, I have all my digestion finished. So when I go to bed, my resting heart rate is around 46 beats per minute. And if it's a 46, I'm going to have a perfect night's sleep. If I eat at five PM or six PM, then my resting heart ra…”
Garg: People who wake up naturally always wake up during REM sleep
“If you wake up naturally, you will always wake up in REM sleep, not a deep sleep.”
Poe: Brain deep cleaning and REM remodeling require full sleep cycles
“The deep cleaning portion of sleep cannot happen within that period of time, nor the refined kind of remodeling of REM sleep could happen. So don't think you can just get away with eight minutes of sleep and be fine for the next day. No. In fact, you do need s…”
Poe: Intense learning automatically increases your body's REM sleep duration
“If you are learning something or have a, an emotional day that you will get more REM sleep. It's homeostatic. It's automatic. You don't need to worry about it. You'll get it. Your body will get it if it needs it. And so if you're learning a lot and you need mo…”
Poe: Going to bed late misses the brain's deep cleaning window
“So if you go to bed too late, you will actually miss the window for that deep slow wave brain cleaning sleep. And the sleep each you'll get is more REM sleep. If you wake up too early you go to bed at normal time, but wake up too early, you'll be missing a lot…”
Light sleep and time spent awake provide no physiological benefit
“Awake and light are pretty much irrelevant. You're not getting any physiological benefit from being in awake or light stage sleep REM and slow wave. That's where all the magic happens.”
Ahmed: More REM sleep dampens amygdala fight-or-flight response
“The interesting thing about REM sleep is researchers were able to find the more REM sleep you get, the less heightened your amygdala response.”
Three-and-a-Half Hours of Undisturbed Sleep Beats Seven Interrupted Hours
“The key is the first three and a half hours that you sleep. So I always try to get to bed before 1130, because you need that first three and a half hour REM sleep. If you get that three and a half hour REM sleep, studies have shown that you'll be much more res…”
Walker: Sleep shifts from deep non-REM early on to REM later
“So that in the first half of the night, the majority of those 90 minute cycles is going to be comprised of mostly deep non-REM sleep, stages three and four. But as we push through to the second half of the night, now that seesaw balance actually shifts over, a…”
Walker: Optimal sleep comprises 20-25% REM and 20-30% deep non-REM
“For most of us, we should spend probably about 20 to 25% of the night in REM sleep, about 20 to maybe 30% of the night in deep non-REM sleep, and the rest is light non-REM sleep.”
Walker: Peak testosterone release occurs during REM sleep, not exercise
“And we produce our peak levels of testosterone release, not during the day, or even after the gym, or just as we're working out during the gym, we produce our peak levels during REM sleep, just before and throughout that period of REM sleep.”