The Sleep Score Is Not Sleep: When the Machine Overrules the Body
Sleep trackers can estimate timing and duration, but new research finds they often miss sleep quality, especially in people with insomnia.
The 12-Hour Calm: What the 2025 Cold Water Immersion Evidence Really Says About Stress, Sleep, and Recovery
A 2025 PLOS One meta-analysis shows cold water immersion can cut stress for about 12 hours and aid sleep and recovery. Here is what the science says and how to…
The Heat Prescription: What 20 Years of Finnish Sauna Data Reveal About Your Heart, Brain, and Recovery
Two decades of Finnish KIHD cohort data link frequent sauna bathing to a 50 percent lower risk of cardiovascular death and a 66 percent lower risk of dementia. Inside the…
Your Light Diet: How Bright Days and Dark Nights Shape Your Healthspan
A landmark UK Biobank study of 13 million hours of wrist-sensor data found that bright days and dark nights predict longer life. Here is the science of circadian light, and…
Sleep Regularity Beats Sleep Duration: The Overlooked Fundamental That Predicts How Long You Live
A wave of accelerometer studies in more than 130,000 adults shows that when you sleep matters more than how long. Inside the Sleep Regularity Index, the mortality and cardiovascular data,…
The Two-Week Phone Reset: What Blocking Mobile Internet Does to Your Mind, and How to Reclaim Your Attention Tonight
A 467-person randomized trial found that blocking mobile internet for two weeks improved mental health more than antidepressants and rivaled cognitive behavioral therapy. Inside the digital wellbeing science, the attention…
The Sleep Regularity Reset: Why a Consistent Bedtime Now Outranks a Long One for Longevity
The American Heart Association’s October 2025 scientific statement and a 60,000-person UK Biobank cohort have converged on a quiet but radical finding: when you sleep matters as much as how…
The Glymphatic System: How Sleep Cleanses the Aging Brain and What 12 Years of Neuroscience Reveal About Dementia Prevention
In 2013, Maiken Nedergaard’s lab at the University of Rochester discovered that the brain runs a sleep-gated waste clearance network called the glymphatic system. Twelve years of follow up research,…
The Sauna Prescription: What 30 Years of Finnish Research Reveal About Heat Exposure, Cardiovascular Mortality, and the Recovery Science That Rewrites Hormesis
Three decades of Finnish cohort research, anchored by the Kuopio Ischemic Heart Disease cohort and a 2015 JAMA Internal Medicine paper, have transformed sauna bathing from a cultural ritual into…
The CBT-I Question: What 40 Years of Insomnia Research Reveal About the First Line Treatment Doctors Still Underprescribe
What 40 years of research from Charles Morin, Richard Bootzin, and Arthur Spielman reveal about Cognitive Behavioral Therapy for Insomnia, the evidence based first line treatment for chronic insomnia that…
