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The Brain That Won’t Shut Down: How Fragmented REM Sleep Breeds Depression TL;DR: Chronic insomnia fragments REM sleep through persistent hyperarousal, preventing emotional memory consolidation and creating a vicious cycle that breeds depression—but cognitive-…
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A study found that REM sleep deprivation significantly impacts brain connectivity, particularly within the default mode network (DMN) and between the DMN and other brain networks, highlighting the importance of REM sleep for maintaining optimal brain function.…
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New research reveals that the wake-promoting drug modafinil affects markers of sleep homeostasis differently depending on a person’s genetics. Key facts: Modafinil improved sustained attention in people with a certain gene variant but not others after sleep de…
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Staying awake and alert can be challenging, especially for pilots working long hours and night shifts. A new study found that the drugs modafinil and caffeine can significantly improve vigilance in pilots compared to placebo, helping them stay alert and attent…
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