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HIIT Workouts: What They Are & Why They Work

Growing in popularity over the past year, HIIT (High-intensity interval training) workouts are all the rage. But what are they and why are they so popular? Exercise science professor Jessica Matthews gives us the lowdown.

4 Dance Styles That Blast Fat

An NYC trainer shares how busting a move can whip you into Mirror Ball trophy-worthy shape

The 5 Biggest Spinning Mistakes

Increasingly colder weather and new-year ambition leads to PACKED fitness classes through January...

Study: Exercise Leaves Women More Winded Than Men

An unfair fact: Despite hitting the same course, female runners are more likely to gasp for air than their male...

Get More Out of Zumba

Zumba is a blast of a workout, but it can also blast some serious calories. The high-energy fitness party...

exercise mistakes: running treadmill gym picture

8 Useless Gym Habits You Need to Drop

You hit the gym with the best of intentions, but is your usual routine hindering your progress?

workout challenge

10-Minute Workout Challenge

Pressed for time? Cut down the length of your workout by kicking up the intensity with this creative twist on a...

abs: jorge cruise picture

5-Minute Tummy Toning Workout

Pressed for time? You can still whittle your middle. Just pick an efficient routine like the one below from ...

Life-Saving Info Every Pregnant Woman Needs to Know

Need some extra motivation to get your pregnant body to the gym? In addition to weight control...

kettlebell exercises

13 Kettlebell Exercises that Firm and Burn

Use these moves to build a kettlebell workout that will tighten and tone your butt, legs, and abs

woman swimming

Make a Splash: Calorie-Blasting Water Workout

Have more fun in the pool with a water workout that tones fat zones and blasts more than 300 calories in under 30 minutes—no sweat

woman walking outside

Give Your Heart a Workout

Unlock the lifesaving power of exercise with this three-pronged fitness breakthrough

woman boxing

Hit Like a Girl

With this do-anywhere boxing routine, you'll look like a knockout in no time flat

woman on spin bike

Take a DIY Spin Class

Get your best cardio workout ever with this fast-paced cycling routine from Justin Rubin, group fitness manager at Equinox in Los Angeles

hope solo

Hope Solo’s 15-Minute Workout

Give your workout routine a world-class upgrade with these signature training moves from the women’s soccer star

man stretching outside

How to Become a Morning Exerciser

Rise and shine! This 4-week exercise plan will get you out of bed and help harness the powers of morning exercise

woman rowing dumbbells

4 Weeks to Fit and Fabulous

Swimsuit season is here and the heat is on. Crank up your body's fat-burning power—even while you snooze—with this cutting-edge plan to drop 10 pounds this month!

woman running beside a lake

Run Less—Lose More

This simple but strategic running program will help you shape up and shed pounds in minimal mileage

Mario Lopez

Muscles by Mario

If Extra host (and new dad) Mario Lopez can make time for fitness, so can you

Woman walking outside

Walk Off 5 Times More Belly Fat

Exercise breakthrough: Scientists discover the best way to stride off pounds without dieting

weight loss success: jorge cruise after picture

He Dropped 40 Pounds and Wrote a Diet Book

Before Jorge Cruise penned his best-selling fitness series, he transformed his own body—and life

"I Lost 45 Pounds and Improved My Golf Game!"

A life on the road caused golf pro Karen Stupples to pack on the pounds. But a few simple food swaps helped her go from a size 12 to a size 4!

weight loss: Christina Taylor after picture

"Facebook Helped Me Slim Down"

For Christina Taylor, the internet provided a surprising source of weight-loss support

"I Discovered My Fitness Passion—And Dropped 30-Plus Pounds!"

Paula David hated exercise until she trained for her first 5-K. Now she's hooked on running and off cholesterol meds

before and after pictures Natombi Simpson

"Zumba Transformed My Body--I lost 90 Pounds and Counting!'"

Natombi Simpson believed that she'd never be less than a size 24. Now she's a size 8!

weight loss success Keoni Hudoba

This Personal Trainer Danced Off 142 Pounds

Keoni Hudoba sang and danced his way from obesity to a career in fitness

weight loss success Michael Knight

He Dropped 89 Pounds and Found a Career in Fitness

A chronic overeater, Michael Knight went from being an obese bodybuilder to a celebrity trainer

Weight loss success Gina Crome

She Lost 172 Pounds and Became a Dietitian

Dropping half her body weight inspired Gina Crome to help others overcome their own weight struggles

Rishi Sharma weight loss success

He Lost 110 Pounds—11 Years Ago

A trip to the hospital inspired a decade of healthy living for Rishi Sharma

Sissy Lusk

She Walked Away 210 Pounds

Sissy Lusk went from 345 pounds to 135 pounds and has kept it off for 11 years

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Man with six-pack abs

Abs Diet for Men

The Abs Diet is a simple plan that will help you shed pounds and build a strong, chiseled body. Within days you'll start shredding flab to reveal a more defined midsection and sculpted muscles all over.

Toned woman stretching outside

Personal Trainer for Women

Don’t work out harder, work out smarter: This plan combines the genius of interval cardio with full-body strength training to keep your body burning calories longer.

Fit man sitting in the yard

Personal Trainer for Men

This program does triple duty—building muscle, burning fat, and saving you time. The plan is built on complex movements that use more muscle with every rep, so you build more lean tissue in fewer sets.

Woman pulling a kayak on the beach

Abs Diet for Women

The Abs Diet for Women Jumpstart will help you lose weight and shape a healthier, hotter body. The plan's trouble-spot toning workouts and fat-melting meals help trim away belly fat for good.