Deep Research
Comprehensive Sleep Research
Long-form, structured articles on sleep science topics. Each piece includes key findings, practical context, and cited references.
手机上治失眠，两年后还管用吗？
《柳叶刀-欧洲区域卫生》发表挪威数字认知行为疗法治疗失眠的两年随访结果，证实其长期效果与成本效益。
CBT-I for Menopausal Insomnia with Hot Flashes: A Randomized Controlled Trial Shows Significant Sleep Improvement
New RCT in Menopause journal finds cognitive behavioral therapy for insomnia (CBT-I) significantly improves sleep quality in perimenopausal and postmenopausal women with hot flashes, offering a non-pharmacological alternative to hormone therapy.
Digital CBT-I Still Works After 2 Years: The Longest Follow-Up Yet
A new RCT in The Lancet finds fully automated digital CBT for insomnia remains clinically and cost-effective at 2 years, with sustained sleep improvements and lower healthcare costs.
How Body Temperature Controls Your Sleep: A Science-Based Guide from Hot Baths to Room Temperature
Synthesizing the 2026 Journal of Clinical Medicine comprehensive review and multiple studies, this deep dive explores the physiological connection between thermoregulation and sleep — why hot baths help, the ideal room temperature, thermoregulatory dysfunction in insomnia, and three most effective temperature-based interventions.
How Poor Sleep Accelerates Cognitive Decline: Evidence From 3 Major 2026 Studies
Three landmark 2026 studies — a 13-year CHARLS cohort of 8,900 adults, a PNAS nap/memory experiment, and a Nature Neuroscience GABA/spindle trial — converge on a clear warning: poor sleep doesn't just feel bad, it measurably accelerates cognitive aging.
Beyond Sleep: How Circadian Rhythm Disruption Drives Cancer Progression
Two new studies reveal how circadian rhythm disruption promotes breast cancer and liver cancer progression through molecular mechanisms involving BMAL1, CLOCK, PER3, and lncRNA AC019080.1.
The Brain's Deep-Cleaning System: How Sleep Clears Alzheimer's-Related Toxins
Three new studies reveal how sleep fragmentation impairs glymphatic clearance driven by norepinephrine slow waves, accelerating Aβ accumulation; chronic insomnia independently increases Alzheimer's risk by 31%.
When You Eat Matters More Than What You Eat: The Science of Chrononutrition and Metabolic Health
A comprehensive synthesis of 7 recent studies (2025–2026) reveals that eating in alignment with circadian rhythms — consuming 70% of calories before 3 PM, avoiding food 3h before sleep — improves insulin sensitivity by 25%, reduces liver fat by 18%, and lowers HbA1c by 0.4% in prediabetic adults.
Sleep and Aging: From Architectural Changes to Science-Based Interventions
A comprehensive analysis of how sleep architecture changes with aging: N3 deep sleep declines 8% per decade, circadian phase advances 1.5-2h, melatonin amplitude drops 40% — plus evidence-based intervention strategies.
Sleep Fragmentation: The Hidden Link Connecting Obesity, Cognitive Decline, and Alzheimer's Disease
Synthesizing three 2026 studies, this deep dive reveals how sleep fragmentation links obesity, cognitive decline, and Alzheimer's risk through impaired glymphatic clearance, increased allostatic load, and disrupted circadian rhythms — and how improving sleep continuity can break this vicious cycle.
Sleep as a Biomarker and Intervention Target for Brain Health: From Ketamine, CBT-I to VR Screening
Integrating multiple 2026 studies, this article explores how sleep serves brain health at three levels: as a mechanism of psychiatric treatment (ketamine), as an early warning signal for cognitive impairment (VR+sleep screening), and as a key modifiable factor in occupational health (work schedule optimization), building a sleep-centered brain health management paradigm.
How Sleep Regulates Your Immune System: A Complete Scientific Picture from Vaccine Response to Infection Defense
Synthesizing the 2026 Nature Reviews Immunology comprehensive review and a 22,480-person cohort study in Brain, Behavior, and Immunity, this deep dive reveals how sleep orchestrates immune function — why insufficient sleep quadruples infection risk, halves vaccine antibody response, and impairs T cell function by 46%, plus 3 evidence-based strategies to boost immunity through sleep.
Sleep Apnea and Cardiovascular Disease: 2026 Updated Guidelines — From Diagnosis to Management
Synthesizing 2026 European Heart Journal and Lancet Respiratory Medicine guidelines, this deep dive explores the relationship between sleep apnea and cardiovascular disease — why OSA is an independent risk factor for hypertension, AF, CAD, and heart failure, and the full landscape of diagnostic and treatment strategies from CPAP to hypoglossal nerve stimulation.
Chronic Insomnia and Systemic Inflammation: 2026 Complete Scientific Picture from Molecular Mechanisms to Clinical Management
2026 comprehensive reviews in Nature Reviews Neuroscience and Brain, Behavior, and Immunity reveal chronic insomnia as a chronic low-grade inflammatory state: IL-6↑42%, TNF-α↑36%, CRP↑58%. This inflammation mediates 42% of CVD risk and 26% of depression risk in insomniacs. CBT-I + exercise + anti-inflammatory diet reduce markers by 25-40%.
Sleep and Alzheimer's Disease: 2026 Complete Scientific Picture — From the Glymphatic System to Aβ Clearance, How Sleep Protects the Brain from Neurodegeneration
2026 landmark studies in Nature Neuroscience, Science, and The Lancet Neurology reveal that deep sleep is the brain's 'nighttime cleaning crew' — clearing Aβ and tau via the glymphatic system. Each 10% reduction in slow-wave sleep increases Aβ accumulation by 25%. Sleep disorders increase AD risk by 2.3-fold. Improving sleep may be one of the most effective modifiable lifestyle factors for AD prevention.
Sleep, Circadian Rhythms & Eating Disorders: 2026 Systematic Review Uncovers a Neglected Clinical Dimension — From Neurobiological Mechanisms to Integrated Intervention Strategies
A 2026 systematic review in Nature and Science of Sleep comprehensively synthesizes evidence on sleep and circadian alterations in EDs. Sleep disturbances are most consistent in AN (PSQI +3.8, slow-wave sleep -23%). Integrating sleep and circadian assessment into ED treatment may significantly improve outcomes.
The Body Temperature-Sleep Connection: A Comprehensive Guide to Thermoregulation-Based Sleep Optimization
A comprehensive deep dive into how body temperature regulates sleep, based on the 2026 Journal of Clinical Medicine review. Learn why core temperature drop triggers sleep onset, how thermoregulation goes wrong in sleep disorders, and the 3 most effective temperature-based sleep aids: hot bath, optimal bedroom temperature (18-22°C), and foot bath.
The Heart-Sleep Connection: How Insomnia and Cardiovascular Disease Fuel Each Other — 2026 Comprehensive Review
A comprehensive 2026 synthesis of evidence from 15 cohort studies (2.1M participants) and multiple mechanistic studies reveals insomnia increases cardiovascular disease risk by 45%, while CVD in turn worsens sleep — creating a vicious cycle driven by sympathetic activation, inflammation, and circadian disruption.
The Sleep-Inflammation-Mental Health Triangle: How Sleep Disturbance Breeds Depression Through Immune Pathways
A comprehensive deep dive into the bidirectional relationship between sleep, inflammation, and mental health based on the 2026 Sleep Medicine meta-analysis (PMID: 41475163). Learn how sleep disturbance triggers inflammatory cascades that drive depression and bipolar disorder, and discover evidence-based anti-inflammatory sleep strategies including diet, exercise, mindfulness, and optimized sleep hygiene.