How to Get the Most Out of Altitude Training

Runners Daily Vitamin

Alex Hutchinson  | Figuring out how long, how often, and when to train in the mountains remains an art for endurance athletes. The basic idea is pretty straightforward: you head to the mountains (or crawl...

Iron and 2,3-DPG are Wonderful Things

Runners Daily Vitamin

Scott W. Tunis MD FACS | Iron is the element in hemoglobin in our red cells that binds and carries oxygen. It’s also why our blood is red. Low in Iron = less oxygen delivery...