rhythm
9 posts.
The room is dark. The list is still open.
Racing thoughts, not worry, are what keep most insomniacs up. A five-minute writing habit — specific, on paper, before you lie down — outperforms trying to relax.
You spent the day indoors. Your body thinks it's still winter.
The conversation about screens at night skips half the story. A 2024 PNAS study in 88,905 adults shows that darker days predict mortality risk as clearly as brighter nights — and most of us never see real daylight.
The chair has had you since nine, and your sleep tonight already knows
Sitting still all evening costs you sleep you'll never feel losing. The 2024–2025 movement data is small, specific, and quietly hopeful — and what to do at 7pm tonight.
The body keeps running after the run is over
A 2025 study of 4 million person-nights found exactly how late an evening workout can run before it costs you the night. The buffer is gentler than you'd think.
The alarm rings, and you reach for snooze. The science is more complicated than your boss thinks.
More than half of us hit snooze every morning. A 2025 global study quantifies what it costs — and a 2024 Karolinska trial complicates the productivity-bro take. What to do tomorrow morning.
The 3pm coffee is still in the room at midnight
Caffeine doesn't just delay sleep. New 2025 evidence shows it keeps your brain in a more activated, less restorative state long after you've drifted off.
The body falls asleep by cooling down, not by lying still
A warm shower 60–120 minutes before bed shortens sleep onset by about a third — not because it relaxes you, but because it tells your body it's safe to dump heat.
The shape of your week matters more than the size of your sleep
Eight hours on Tuesday, four on Wednesday, eleven on Saturday — same average, different body. The 2024 data on sleep regularity, and what to protect tonight.