Sweat Science
Alex HutchinsonThe latest research on endurance, fitness, and health, clearly explained with a skeptical eye.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 27 | Subscribers | Read | sweatscience.substack.com |
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| #188 |
Latest Issues
Recent posts by this newsletter. Browse the email archive.
When Reading the Abstract Isn’t Enough
One of my recent Sweat Science articles for Outside takes on a long-debated question: how many extra calories does exercise really burn, once you consider the various ways the body might compensate for its lost calories? It’s an important d...
The VO2max Record That (Probably) Wasn’t
The talk of the endurance world last week was Norwegian triathlete Kristian Blummenfelt’s Instagram post, which offered a peek at the screen following a treadmill test that appeared to show a record-setting VO2max value of 101.1 ml/kg/min. ...
Running shoe comfort, ketones for altitude, and getting lucky
I’m going to try something new in this edition of the newsletter: outtakes. I read a lot of scientific papers in the process of choosing topics for my Sweat Science column in Outside. Many of the studies that don’t make the cut are still pr...
The Top Ten Sweat Science Articles of 2025
‘Tis the season for introspection (or, if you prefer, navel-gazing). This year was notable for me because I finally published the book I’d spent the previous five years working on, The Explorer’s Gene. The book is about why we’re drawn to n...
Authors
The writers behind this newsletter.
Author of The Explorer's Gene and Endure, Outside columnist, Globe & Mail, ex-physicist, not-quite-sub-4 miler.
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