Emma·财木兰👸☀️👑 @Mulanx4131 - Twitter Profile

Emma·财木兰👸☀️👑

@Mulanx4131

22 minutes ago

@ChaseLuBuildLab 来了

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Emma·财木兰👸☀️👑

@Mulanx4131

about 1 hour ago

Sleep is the most important part of human life！

Shining Science

@ShiningScience

about 6 hours ago

🚨 Regular daily napping is directly linked to larger total brain volume, potentially delaying brain aging by up to 6.5 years According to a study led by researchers at University College London and published in the journal Sleep Health, habitual daytime nappers possess significantly larger total brain volumes than non-nappers. Utilizing Mendelian randomization to examine genetic data from nearly 380,000 UK Biobank participants, scientists discovered a causal link between genetic predispositions to napping and larger brain size. The structural difference in volume between regular nappers and non-nappers was equivalent to roughly 2.6 to 6.5 years of aging, or about 4 years on average, offering compelling evidence that short daytime rests could help preserve structural brain health over time. While brain shrinkage naturally accelerates as people age, maintaining total brain volume is widely regarded as a key indicator of cognitive resilience and lower dementia risk. Interestingly, while the study highlighted clear benefits for overall brain size, it found no direct impact on reaction times, visual memory, or hippocampal volume, suggesting that napping primarily functions as a structural buffer against neurodegeneration rather than an immediate booster for specific cognitive tasks. Researchers emphasize that brief 15- to 30-minute naps in the early afternoon appear to offer the ideal balance, providing protective benefits without disrupting nighttime sleep. As brain health remains a top priority for aging populations worldwide, these findings challenge long-held workplace stigmas surrounding daytime rest and suggest that a brief midday power nap might be an essential component of lifelong health maintenance. source: Paz, V., Dashti, H. S., & Garfield, V. Is there an association between daytime napping, cognitive function, and brain volume? A Mendelian randomization study in the UK Biobank. Sleep Health, 9(5), 786-793.