Heidi Mills

Why the Boutique Brands Are Winning

The small women-led team behind Oiselle surprised everyone last year by snagging pro runner Lauren Fleshman. And now they've done it again, by bringing Kara Goucher from Nike. What is it about...

Crushing It: How Over-Training Can Erode Your Body

Training hard but still eating like you’re not? You could wind up with hormone deficiencies. The consequences can be dire: low energy, diminished sperm count, and an inability to conceive children....