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.
An NYC trainer shares how busting a move can whip you into Mirror Ball trophy-worthy shape
You hit the gym with the best of intentions, but is your usual routine hindering your progress?
Pressed for time? Cut down the length of your workout by kicking up the intensity with this creative twist on a...
Pressed for time? You can still whittle your middle. Just pick an efficient routine like the one below from ...
Need some extra motivation to get your pregnant body to the gym? In addition to weight control...
Use these moves to build a kettlebell workout that will tighten and tone your butt, legs, and abs
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
Unlock the lifesaving power of exercise with this three-pronged fitness breakthrough
With this do-anywhere boxing routine, you'll look like a knockout in no time flat
Get your best cardio workout ever with this fast-paced cycling routine from Justin Rubin, group fitness manager at Equinox in Los Angeles
Give your workout routine a world-class upgrade with these signature training moves from the women’s soccer star
Rise and shine! This 4-week exercise plan will get you out of bed and help harness the powers of morning exercise
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!
This simple but strategic running program will help you shape up and shed pounds in minimal mileage
If Extra host (and new dad) Mario Lopez can make time for fitness, so can you
Exercise breakthrough: Scientists discover the best way to stride off pounds without dieting
Before Jorge Cruise penned his best-selling fitness series, he transformed his own body—and life
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!
For Christina Taylor, the internet provided a surprising source of weight-loss support
Paula David hated exercise until she trained for her first 5-K. Now she's hooked on running and off cholesterol meds
Natombi Simpson believed that she'd never be less than a size 24. Now she's a size 8!
Keoni Hudoba sang and danced his way from obesity to a career in fitness
A chronic overeater, Michael Knight went from being an obese bodybuilder to a celebrity trainer
Dropping half her body weight inspired Gina Crome to help others overcome their own weight struggles
A trip to the hospital inspired a decade of healthy living for Rishi Sharma
Sissy Lusk went from 345 pounds to 135 pounds and has kept it off for 11 years
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.
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.
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.
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.