Archive - Contraclockwise

Should we trust any numbers from sleep trackers?

Yes, but sleep/wake accuracy is useless, specificity is hackable, and it all depends on the people in your evaluation set.

Aug 26 • Olivia Walch

The Low-Hanging Fruit That Nobody Wants

It’s behavioral light regularity. I don’t overly spell out this point in the piece, so I’m making it clear here, in the subtitle. It’s turning the…

Aug 20 • Olivia Walch

You Should Come Work With Me To Rescue Drugs With Timing

It’s 2015, and someone at Peloton Therapeutics is making the call for how to dose their new molecule, PT2399, in its first in-mouse experiments.

Aug 18 • Olivia Walch

July 2026

How to Get Over Jet Lag: Part 1

You’re in a boat in a boat race.

Jul 6 • Olivia Walch

You're Sick Because You're Flat

I'm manifesto-ing on circadian amplitude again

Jul 2 • Olivia Walch

June 2026

Thoughts on the retracted Nature Medicine immunotherapy paper

Can a long half-life drug have a time-of-day effect?

Jun 26 • Olivia Walch

March 2026

Medicine Forgot Time

Drug timing is harder than it looks, but it can be done.

Mar 10 • Olivia Walch

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