The sun is out, temps are soaring, and carefree summer vibes abound. Why not channel that energy into your workout routine? This five-day break-a-sweat workout challenge, courtesy of Class Fitsugar, ...

If your current workout routine is a snoozefest, allow me to make a recommendation: this 5-day full-body workout challenge from POPSUGAR's Class Fitsugar. We've teamed up two of our most hilarious and ...

Mega Insta star Kayla Itsines (7.1 million followers and counting!!) is pure inspo. Australian personal trainer, Kayla ...

Ever wonder what the members of BTS do to have the stamina to perform complicated choreography for hours at a time? Now, fans will have access to BTS’s workouts; Or at least several curated workouts.

We are at the halfway mark in our six-part cardio challenge! With a little bit of humor and a lot of focus, fitness instructors Astrid Swan and Ridge Davis lead you through a mood-boosting cardio ...

In the first edition of our six-part core lab, Tonal Instructors Dr. Liz Letchford & Coach Paul Wright guide you through a workout to build a strong foundation. To kick-off your conditioning this ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Ready to revamp your workout routine—and get lasting results? Enter: the Women's Health 30-Day Workout ...

Low on time? Not in the market for yet another HIIT workout? This quick 14-minute low impact ab workout from SWEAT co-founder and trainer Kayla Itsines is just what you need to challenge and ...

Confession: Despite my lengthy career as a fitness journalist and being well-versed in the health benefits of a strong core, I have not been consistent with training my abs for a while. (Hi, holidays ...