The department of
Circadian
Circadian rhythm is your body's 24-hour internal clock, shaping sleep timing, alertness, and hormones — essays, science, and field notes on living with it.
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6
Circadian
June 2026 · 5 min
What Product Design Awards Actually Tell You About a VR Headset Like the Meta Quest 2
A strap won an award. Not the headset — the strap. When a third-party accessory for the Meta Quest 2 picked up a design citation a few years back, the press release did what press releases do: it…
By Daniel Whitfield · Read →
Circadian
May 2026 · 8 min
Outdoor Activity and Sleep: Does the Light Matter More Than the Exercise?
A friend tells you she sleeps better on the days she runs outside. She probably does. The question is why — and it's not the question most people answer.
By Marcus Webb · Read →
Circadian
May 2026 · 5 min
Sleep Hygiene Isn't a Bedtime Routine: What Actually Moves the Needle
There is a version of sleep advice — you have read it, probably this week — that reads like a spa menu. Dim the lights. Lavender. No screens after nine. A cool, dark room. A cup of chamomile.
By Megan Caldwell · Read →
Circadian
May 2026 · 4 min
The Quiet Cost of Daylight Saving Time: What "Gaining an Hour" Actually Does to Your Circadian Rhythm
Every fall, around the first Sunday in November, a particular sentence makes the rounds at dinner tables: at least this is the good one — we get an hour back.
By Megan Caldwell · Read →
Circadian
May 2026 · 6 min
Sleep Hygiene Is Mostly Right, and Mostly Oversold
You have read the list before. Keep the bedroom cool and dark. No screens an hour before bed. No coffee after 2 p.m. Go to bed and wake up at the same time. Take a warm bath. Don't nap. Don't drink.
By Judith Hawthorn · Read →
Circadian
May 2026 · 10 min
What Blue Light Blocking Glasses Actually Do (and Where the Wavelength Story Falls Apart)
The advice, by now, has the worn smoothness of a river stone: wear blue light blocking glasses in the evening and you will sleep better.
By Daniel Whitfield · Read →
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