Can You Catch Up on Sleep? What Recovery Sleep Actually Repays
The weekend patch is the most widely practised sleep intervention in the world. The evidence says it gives...
Longevity & Supplement Guides
Evidence-scored guides to supplements, biomarkers, and daily protocols. Written the way we score our products: honestly.
Showing 14 guides tagged “Sleep”.
Is Yoga Really the Best Exercise for Sleep?
A headline ranking yoga first for sleep is doing the rounds again. Three network meta-analyses have now asked...
Exercise and the Brain's Night Shift: What the Glymphatic Research Actually Says
A review this month put "exercise helps the brain take out the trash" into every feed. The mechanism...
Bedroom Air Quality and Sleep: The Free Variable Nobody Measures
We measure the sleeper in exquisite detail and ignore the sealed room they spend eight hours in. What...
One Number for a Whole Night: What an AI Found in 10,000 Sleep Studies
A new Nature Communications model read the raw signals from more than 10,000 overnight recordings and found a...
The nightcap illusion: what alcohol does to your sleep and recovery
A drink shortens the felt distance to sleep and lengthens the real distance to recovery. What pooled sleep-lab...
The Light You Live In: Bright Days, Dark Nights, and Your Body Clock
The brightness of your days and the darkness of your nights is a longevity lever hiding in plain...
Are Naps Good or Bad? What the Newest Research Actually Says
Two 2026 headlines said opposite things about napping. The research resolves it — and points somewhere more useful:...
The Night Shift: What Deep Sleep Does to Your Body
Scientists just mapped the brain circuit that releases growth hormone during deep sleep. Here is what it means...
Sleep Regularity vs Duration: Why Consistency May Matter More
A large wearable study found sleep regularity predicts mortality better than sleep duration. Why keeping a consistent schedule...
Caffeine and Sleep: Why the Afternoon Cup Matters
Caffeine masks tiredness rather than removing it, and with a 5–6 hour half-life an afternoon coffee can still...
Sleep Stages Explained: Light, Deep, and REM
Sleep is a structured cycle of light, deep and REM stages, each doing different work — deep sleep...
