Is It the Summer Heat or Dehydration That Makes Your Runs Feel Harder?

Is It the Summer Heat or Dehydration That Makes Your Runs Feel Harder?

Intriguing new research sheds light on just how much your hydration efforts during difficult runs impact your exertion and performance level.

Eileen Gu, Freestyle Skiing Gold Medalist, Places Second in San Francisco Half Marathon

Gu ran a time of 1:41:07 on July 24 after “spontaneously” signing up for the race.

What a High Resting Heart Rate Could Be Telling You About Your Training

The meaning behind this heart-related metric, plus three strategies for getting back to your baseline.

Want to Race at the Most Magical Place on Earth? Read This First

There are plenty of opportunities to race at the most magical place on earth.

5 Things to Know About Juliette Whittaker Before the World U20 Championships

The 18-year-old has run 1:59.04 for 800 meters and 4:36.24 in the mile.

Make the Most of Your Time Off With This Vacation Running Playlist

No matter where you are in the world, these tunes will keep you motivated during the heat of summer.

RUNNER'S WORLD SHOP

The Latest from the RW Collection