Dig Deep: You’re Stronger Than You Think
November 10, 2013Posted by on
Awhile back I was doing a HIIT (High Intensity Interval Training) workout over on a nearby running/biking trail. Along the trail there’s a fairly steep hi
"It’s easily worried about you using up your body’s limited fuel, and so puts the brakes on your exertion long before you’ve reached your true physical limits."
See on www.artofmanliness.com