Matt Hart is a freelance journalist whose work has appeared in Outside, National Geographic Adventure, and Men's Journal magazine. He resides in Boulder, Colorado.
How dangerous is running on high-pollution days?
Peak Bagging in Colorado
From Sept 2013 issue of Trail Runner magazine.
The Insanity Loops
Why would anyone decide to toe the line at Barkley?
Should You Inhale
Stop Sacrificing Sleep
Keeper of the Trail
Why Peter Bakwin holds the key to all trail running records.
Youth and Minimalist Shoes
Is Tight Right?
Ask the Coach: Training by Heart Rate - Trail Runner Magazine
Ask the Coach: How To Pace Your First 100-Miler
Bring the Attitude
Ask the Coach: To Stretch or Not To Stretch