From sloshy stomach to acid reflux, some of the worst side effects of running are related to...

By Maria Connor

Depending on your training regimen, health goals and dietary restrictions, your perfect bala...

By Joanna Sayago Golub

Meeting your protein needs as an endurance athlete is easy. Just pay attention to when you e...

By Matt Fitzgerald

The simple answer: It depends less on rank and more on the factors that affect caloric burn....

By Emily Brown

Once you feel like you're just about ready for your 5K, it's time to start paying closer att...

By Michele Gonzalez

Dalian Wanda Group Co., Ltd. ("Wanda"), one of the leading Chinese private conglomerates, ha...

By Michael Nystrom

Marathons are the ultimate goal on many runners' to-do lists. Check one off and you could fi...

By Megan Harrington

Proper fueling for long runs—before, during and after—takes certain know-how. Ch...

By Erica Schuckies

If injury or poor performances plague your run leg, it may be time to reconsider your mindse...

By Jim Gourley

These taxing workouts are best reserved for experienced marathoners looking to improve their...

By Jenny Hadfield