Physiologically Speaking

Physiologically Speaking

Physiology Friday #268: Strenuous Workouts May Undermine Sleep-But Timing is Crucial

A new study of more than 14,000 WHOOP users finds that exercising too hard too close to bedtime might spell trouble.

Brady Holmer's avatar
Brady Holmer
May 02, 2025
∙ Paid

Greetings!

Welcome to the Physiology Friday newsletter.

Details about the sponsors of this newsletter including FSTFUEL electrolytes, Examine.com, and my book “VO2 Max Essentials” can be found at the end of the post. You can find more products I’m affiliated with on my website.

Physiologically Speaking is a reader-supported publication. To receive new post…

User's avatar

Continue reading this post for free, courtesy of Brady Holmer.

Or purchase a paid subscription.
© 2026 Brady Holmer · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture