Sleep Regularity May Matter More Than Sleep Duration
A UK Biobank study of 60,977 adults found sleep regularity predicted all-cause mortality more strongly than sleep duration. What the 2024 research shows.
Wellness
Sleep, stress and mental recovery: the habits and the evidence behind them, without the hype.
All articles in Wellness
Caffeine 6 Hours Before Bed Cut Sleep by an Hour in a Lab Study
A randomized trial gave 12 adults 400 mg of caffeine at 0, 3 and 6 hours before bed. Even 6 hours out, objective sleep fell by more than an hour.
Do Screens Really Ruin Sleep? The Blue-Light Evidence, Reviewed
Melatonin suppression from bright blue light is real in labs, but reviews find little evidence blue-light glasses or night mode fix sleep. A balanced look.
Eight Weeks of Meditation: What the Clinical Evidence Shows
A JAMA meta-analysis of 47 trials found eight weeks of mindfulness meditation moderately improved anxiety, depression and pain. What it means for you.
Weekend Warriors: Do Compressed Workouts Still Work?
A 63,591-person analysis found weekend warriors who met activity guidelines in 1-2 sessions cut mortality risk about as much as regular exercisers.
Can You Repay Sleep Debt on Weekends? A Study Says Mostly No
A two-week lab study found weekend recovery sleep failed to reverse metabolic changes from weekday sleep loss, including insulin sensitivity and weight.
