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Lisa Mulcahy

Contributing Writer

Lisa is an internationally established health writer whose credits include Good Housekeeping, Prevention, Men’s Health, Oprah Daily, Woman’s Day, Elle, Cosmopolitan, Harper’s Bazaar, Esquire, Glamour, The Washington Post, WebMD, Medscape, The Los Angeles Times, Parade, Health, Self, Family Circle and Seventeen. She is the author of eight best-selling books, including The Essentials of Theater.

Latest from Lisa Mulcahy

Before and after of Ethan Noblesala giving a peace sign in two side-by-side photos.

At 235, I Couldn't Reach My Feet. Now I’m Down 100 Pounds and Running Marathons Thanks to This Viral Sport.

“People have given me tons of compliments on how much younger and healthier I look!”

before and after of Jay Galvin transformation

What I Learned From This Legendary Mentor That Helped Me Lose 46 Pounds in 4 Months

I’m a celebrity trainer for multiple A-list stars. The one who taught me the basics changed my health and my life.

hand holding glowing pocket flashlight

Does Masturbation Raise or Lower Testosterone? Doctors Explain

The links are complex, but here's what to know.

before and after weight loss transformation of Aadil Baig

I Didn’t Let Chronic Pain Stop Me From Losing 115 Pounds. Here’s How I Did It.

I felt hopeless after regaining weight. Then I found a plan that worked for me.

Before and after transformation of Gary Biser

One Diet Change Helped This Chef Lose More Than 300 Pounds in Three Years

I weighed approximately 500 pounds. Now I’m in the best shape of my life.

Glen Wagner with race medal showing before and after transformation

I’m Stronger Than Ever at 68. Here’s How I Lost 121 Pounds in 14 Months

When I figured out what drove my eating, everything changed. Now, I even do triathlons.

Matthew Bickel WLT

I’m Stronger Than Ever After Losing 252 Pounds—Here’s the Workout I Did to Make It Happen.

I now do ultramarathons and am about to embark on my biggest, scariest goal ever.

athletic man jumping on a crate while having sports training in a gym

Do Nitric Oxide Supplements Actually Work?

Experts also weigh in on their safety.

Stephen Sanders before and after weight loss

I’m a Doctor Who Neglected My Health. One Photo Inspired Me to Lose 60 Pounds

“I’m 45 years old and finally in the best shape of my life.”

before and after of thomas dominguez

2 Years Before I Started Marathon Running, I Was at My Heaviest—Here’s How I Changed My Life Around.

It took a heart attack at age 43 and a prediabetes diagnosis to make a change.

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