5 Science-Backed Ways to Make Yourself Poop

Your race is in an hour, and you know you’ve gotta go. Here’s how to guarantee a timely Number 2. [View in Browser]( [Runner's World Logo]( [SHOP]( [RW+ EXCLUSIVE]( [SUBSCRIBE]( [5 Science-Backed Ways to Make Yourself Poop]( [5 Science-Backed Ways to Make Yourself Poop]( Your race is in an hour, and you know you’ve gotta go. Here’s how to guarantee a timely Number 2. [Read More](   [Training for a Marathon? Brush Up on These Basics]( [Training for a Marathon? Brush Up on These Basics]( If it's your first 26.2, brush up on the basics with these tips. [Read More](   [The Women’s 5K Final Should Be Epic!]( [The Women’s 5K Final Should Be Epic!]( The world record-holder takes on the Olympic champion; also, the 4 x 100 finals. [Read More](         [Can Anyone Beat Athing Mu?]( [Can Anyone Beat Athing Mu?]( The Olympic 800-meter champion seeks her first world title; also, the men’s 5K and 4 x 400-meter finals. [Read More](   [The Best Sport Watches for All Your Workouts]( [The Best Sport Watches for All Your Workouts]( Monitor your progress and hit your next PR with these genius tracking tools. [Read More](   [An Encore Performance from Allyson Felix]( [An Encore Performance from Allyson Felix]( Allyson Felix was enjoying wings and a root beer float. Then her phone rang. [Read More](         RUNNER'S WORLD SHOP The Latest from the RW Collection [Shop Now]( [Shop Now]( [Shop Now](   [Win the Hike the Grand Canyon Giveaway ($2,450 Value)!]( Follow Us [Unsubscribe]( | [Privacy Notice/Notice at Collection]( RunnersWorld.com ©2022 Hearst Magazines, Inc. All Rights Reserved. Hearst Magazines, 300 West 57th Street, New York, NY 10019