Topic
Sleep Quality
Research and strategies for improving the restorative quality of sleep beyond just hours slept.
Deep Research Articles
Can a Probiotic Actually Improve Your Sleep? A 2026 Clinical Trial Tested It With Real Brain Scans
A 2026 randomized trial found the probiotic Bacillus coagulans IDCC 1201 improved sleep efficiency by 13.7% and added 49 minutes of total sleep time. PSG data included.
Can an Ancient Chinese Exercise Fix Your Sleep? A 2026 Review of 36 Clinical Trials Says Maybe
A 2026 systematic review of 36 RCTs found Baduanjin exercise significantly improves sleep quality, depression, and anxiety in university students. Here's what the data shows.
How Long Before Bed Can You Use Your Phone? A 2026 Study Found the Threshold
A study of 187 university students found that using your phone for over 60 minutes before bed with lights on doubles your risk of poor sleep. Here are the exact numbers.
Can Brain Stimulation Fix Your Sleep? A Sham-Controlled Trial Shows Surprising Results
A new 2026 trial tested ExoTMS brain stimulation on people with poor sleep. 55% achieved clinical remission after just 6 sessions. Here's what the data shows.
Can a Probiotic Help You Sleep? A Randomized Trial Says Maybe
A 2026 RCT in Nutrients found that Bacillus coagulans IDCC 1201 significantly improved sleep efficiency (+13.71%), total sleep time (+50 min), and reduced nighttime wakefulness (-44 min) compared to placebo in adults with sleep disturbance over 4 weeks.
Can a Phone App Cure Insomnia Long-Term? 2026 Study Says Yes
A Norwegian RCT proves digital CBT-I apps reduce insomnia symptoms for 2+ years at minimal cost. Discover if this proven sleep therapy works for you.
Research Feed
Can Baduanjin Exercise Really Improve Sleep? 36 Clinical Trials Say Yes
A 2026 meta-analysis of 36 trials found Baduanjin exercise significantly improves sleep quality and reduces anxiety. Here's how often to practice.
Happier People Sleep Better — 2026 Study of 25,000 Americans
A 2026 study of 25,090 US adults found people who are satisfied with life sleep longer, have fewer insomnia symptoms, and feel more rested. Here's what the data shows.
Snoring and Cancer? A Study of 3 Million Patients Finds a Link
A 2026 BMC Pulmonary Medicine study of over 3 million patients found that OSA was associated with a 40% higher 5-year cancer risk, plus elevated risks for heart disease, COPD, asthma, and diabetes.
How Tired Are Night-Shift Nurses? A Ghana Study Puts a Number on It
A 2026 Scientific Reports study of 175 pediatric nurses in Ghana found that 20.6% experienced severe excessive daytime sleepiness after night shifts, with sleep disturbances, GI issues, and cardiovascular strain as the most common physiological complaints.
Slower Brain Waves During REM Sleep May Signal Early Alzheimer's Changes
A 2026 Molecular Psychiatry study found that REM sleep EEG slowing is significantly associated with cholinergic denervation in brain regions targeted early by Alzheimer's disease, suggesting it could serve as a potential early biomarker.
Music Interventions Improve Sleep, Stress, and Brain Connectivity in Acute Care Surgeons
JMIR Formative Research publishes study showing prescribed and self-selected music interventions reduce stress, improve sleep quality, and enhance brain connectivity in acute care surgeons.
Which Foods Naturally Contain Melatonin? A Scoping Review of 19 Studies
A 2026 scoping review in Food Science & Nutrition found that Montmorency tart cherries, Jerte Valley cherries, tomatoes, and kiwifruit naturally contain melatonin. Regular consumption can improve sleep quality, duration, and efficiency, particularly in individuals with sleep disturbances.
Shift Work Increases Sleep Disturbance Risk by 58%: Systematic Review of 21,677 People
A 2026 systematic review and meta-analysis in BMC Public Health (22 studies, 21,677 participants from 8 countries) found that shift workers have a 58% higher risk of sleep disturbances compared to regular day workers, with night shifts and rotating shifts posing the highest risk.
Chronotype-Aligned Exercise Timing Improves Cardiometabolic and Sleep Outcomes: 12-Week RCT
A 12-week RCT published in Open Heart found that aligning exercise timing with individual chronotype (morning/evening type) significantly improves blood pressure, sleep quality, and heart rate variability compared to misaligned exercise timing.
Sleep Apnea Doubles Hypertension Risk: Meta-Analysis of 45,000 People
A meta-analysis of 15 prospective cohorts (45,000 individuals) in JAMA Cardiology found that moderate-to-severe sleep apnea (AHI >=15) independently doubles the risk of developing high blood pressure, regardless of weight or age.