Topic
Deep Sleep
The N3 stage of NREM sleep characterized by slow-wave activity, essential for physical restoration.
Deep Research Articles
你睡着的时候，大脑在"冲洗"自己——2025年PNAS新研究揭示深度睡眠的真正作用
2025年PNAS发表的研究揭示，深度睡眠期间大脑通过独特的脑电活动模式驱动脑脊液流动，冲洗代谢废物。这项研究为'为什么要睡好'提供了具体的生物学解释。
你家孩子睡不够，脑子真的在"变脏"
一项对6800名青少年的研究发现，睡眠不足会导致大脑胶质淋巴系统功能下降，血管周围间隙负担增加，进而影响认知和心理健康。
Your Teen Isn't Sleeping Enough — and Their Brain's Cleanup Crew May Be Going on Strike
A 2025 study of 6,800 adolescents found that insufficient sleep impairs the brain's glymphatic waste-clearance system, leading to smaller brain volumes, worse cognition, and more mental health problems.
Your Brain Takes a Bath During Deep Sleep — How CSF Clears Metabolic Waste
A 2025 study reveals that deep sleep triggers cerebrospinal fluid dynamics synchronized with slow-wave brain oscillations, flushing out metabolic waste including amyloid-beta. The mechanism explains why deep sleep is critical for memory and brain health.
Your Brain Washes Itself During Deep Sleep — New Evidence on CSF Flushing
A 2025 fMRI-PSG study found that slow waves and sleep spindles during deep sleep are tightly time-locked to rapid cerebrospinal fluid fluctuations. Your brain isn't just resting at night — it's physically flushing out metabolic waste.
深度睡眠时，你的大脑在「冲洗」自己——脑脊液清除废物的新证据
2025年多项研究证实，深度睡眠期间脑脊液流动加速，通过慢波振荡驱动的「泵机制」清除大脑代谢废物。这解释了为什么睡眠不足与阿尔茨海默病风险相关，以及为什么老年人脑功能下降。
Research Feed
How Eye Movements During Sleep Expose Your Body Clock (2026)
Eye movements during sleep reveal hidden micro-states organized by your body clock. Learn what this 2026 discovery means for deep sleep quality.
Sleep Selectively Preserves Emotional Memories to Regulate Mental Health
A Nature Communications study reveals sleep preferentially consolidates emotional memories while de-emotionalizing them via prefrontal-amygdala coupling during REM sleep.
Sleep Spindles Predict Overnight Motor Skill Gains — and Can Be Enhanced by Targeted Memory Reactivation
A Northwestern University study shows that NREM sleep spindle density and duration directly predict overnight improvement in piano sequence performance, and playing audio cues during sleep boosts gains by 42%.
Tai Chi Enhances Slow-Wave Activity During Deep Sleep in Older Adults: 12-Week RCT with EEG Evidence
A 2026 RCT in Frontiers in Physiology provides the first EEG-based evidence that 12 weeks of Tai Chi practice significantly enhances slow-wave activity (SWA) during deep sleep in older adults with mild insomnia, increasing deep sleep duration by 18% and improving PSQI scores by 2.8 points.