Tag

circadian

3 posts.

Soft morning sunlight breaking across a wide green field, the first real light of the day.

circadian

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.

Jun 25, 20266 min

A quiet bedside lamp glowing warm against soft evening light, the same scene a body could come home to any night.

sleep

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.

May 7, 20265 min

A view of Earth's blue horizon from low orbit, the curve of the planet glowing against deep space.

sleep

The architecture of the night, borrowed from astronauts

Artemis II just flew. Its crew slept on a schedule designed by sleep scientists. Here's what they did — and what the architecture of an astronaut's night can teach yours.

May 6, 20265 min