💤When sleeping in a hotel, half of your brain resists deep sleep due to a threat detection system.
🐬Other species like dolphins can sleep with half a brain in deep sleep while the other half remains awake.
🍺Alcohol disrupts REM sleep, leading to intense dreams and the need for REM sleep rebound.
🍁Marijuana can also block REM sleep, causing hallucinations and disrupted sleep cycles.
💪Lack of sleep can lower testosterone levels and have negative effects on overall wellness.
Why does half of the brain resist deep sleep in a hotel room?
—Sleeping in an unfamiliar environment triggers a threat detection system, causing one half of the brain to stay alert while the other sleeps.
Can other species sleep with half a brain while the other half remains awake?
—Yes, dolphins and other sea-dwelling mammals can sleep with half a brain in deep sleep while the other half stays awake.
Why do alcohol and marijuana disrupt REM sleep?
—Alcohol and marijuana can block or inhibit the process of REM sleep, leading to intense dreams, hallucinations, and disrupted sleep cycles.
What are the consequences of lack of sleep on testosterone levels?
—Men who sleep for less than five to six hours a night have testosterone levels similar to someone ten years their senior.
Why is sleep essential for overall wellness?
—Sleep is necessary for the brain to recharge and recuperate. Lack of sleep can have detrimental effects on cognitive function, mood, and physical health.
00:05When sleeping in a hotel room, half of your brain resists deep sleep due to a threat detection system.
02:22Alcohol and marijuana can disrupt REM sleep, leading to intense dreams and hallucinations.
05:22Sleeping for less than five to six hours a night can lower testosterone levels.
08:27Ultra marathon runners and cyclists who go extended periods without sleep can experience hallucinations and delusions.
