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1. How Alcohol Tanks Your Heart Rate Variability and Sleep
by Freya Drohon
More and more people are measuring heart-rate variability using fitness trackers—and seeing their HRV numbers plummet after a few drinks the night before. Here’s why.
2. The Great Cooling Revolution in Endurance Sports
by David Roche
Studies show that reducing body temperature may improve performance even in relatively temperate conditions. We’ve known that physiology for a long time, but it wasn’t until recently that athletes started making cooling techniques a top priority. All around the world, in all different sports, there is something big happening. We are witnessing a cooling revolution.
3. 10 Takeaways From the 2022 Ultra-Trail du Mont-Blanc
by Brian Metzler
2022’s Ultra Tour de Mont Blanc is in the books. Here are the stories and changes we’re tracking, and what they mean for the trail community.
4. Did Ultrarunning Legend Dean Karnazes Really Get Attacked By A Coyote?
by Nicholas Triolo
A video taken by “Ultramarathon Man” minutes after surviving an alleged coyote attack gets criticized for being fake news. We reached out to Dean for answers.
5. Trail Running Gear You Can’t Live Without – Selected By You!
by Reagan Colyer
We asked our readers: what’s the best piece of trail gear you’ve ever used? Here’s what our audience said.