Kristine Kearns
Associate Health & Fitness Editor
Kristine Kearns, a writer and avid runner, joined Runner’s World and Bicycling in July 2024. She previously coached high school girls cross country and currently competes in seasonal races, with more than six years of distance training and an affinity for weightlifting. You can find her wearing purple, baking cupcakes, and visiting her local farmers market.

Run o’clock: How to choose the best time of day to go running
Not all runners like to rack up miles at the same time, so experts help us to unpack the pros and cons of running in the morning and evening
27 August 2025

Sick of feeling nauseous after a marathon? Here’s what can help
While completing a marathon is something to celebrate, your stomach may retaliate to running so far – so here’s how to find relief from post-race nausea, and reasons why it occurs in the first place
24 October 2024