Kells McPhillips Author Headshot

Kells McPhillips

Kells McPhillips is a health and wellness writer living in Los Angeles. Her journalism has appeared in The New York Times, Well+Good, Fortune, Runner’s World, Outside, Yoga Journal, and others.

Kells McPhillips's Articles (17)

Runners during a marathon, about to hit the wall

Marathon + Racing

6 Expert-Backed Tips to Avoid Hitting the Wall During a Marathon

Woman running outdoors

Run

How to Do a Tempo Run—and Why It's an Essential Part of Your Training

Peloton member running outdoors

Run

How To Breathe While Running: Tips and Techniques To Breathe Easy

Two women jog together, practicing zone 2 cardio

Cardio

Why Easier Efforts May Just Improve Your Cardiovascular Fitness

Woman runs outside on a track, how to increase vo2 max

Cardio

How to Increase Your VO2 Max to Level up Your Workouts

Woman goes rucking outside

Cardio

All You Need to Level Up Your Next Walking Workout Is a Backpack