Long-Term Use of Artificial Sweeteners Can Lead to Body Composition Changes, Study Suggests

Long-Term Use of Artificial Sweeteners Can Lead to Body Composition Changes, Study Suggests

New research points to a link between non-nutritive sweeteners and increased fat stores.

Hyperhydration Could Set You Up for Better Running in Hot Weather

Sports dietitians discuss this hydration technique that can prepare you for long runs and races.

Kevin Hart Tore His Abdomen Racing a Former NFL Player in a 40-Yard Dash

“Ladies and gentlemen, the age 40 is real. Respect that age.”

Looking to Boost Your Running Recovery? These Expert Recommended Calf Sleeves May Help

Give your lower legs a break with these lactate-flushing compression calf sleeves.

Everything Runners Should Know About Resting Heart Rate, Including How Training Affects Your Number

Experts explain this marker of fitness and why it’s helpful to keep an eye on your heart rate stats.

Run Motivation Reaching Zero Right Now? We Have the Tips You Need to Make Your Next Run More Fun

Boost the joy factor of your runs so you look forward to getting out the door with these five strategies from experts and Runner’s World editors.