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Lena Dunham shares why she works out: "It ain't about the ass, it's about the brain."
Already dreaming of swimsuit season? Karena and Katrina spill their most fitspirational tips to get you bikini body-ready!
"I'm softer than I've ever been, including that unfortunate semester in high school when I simultaneously discovered Krispy Kreme and pot."
Lena Dunham says taking care of your health has way more to do with just looks or losing weight.
Let's hope 007 can keep up with super-fit actress Stephanie Sigman when Spectre comes out this fall!
When she's not walking the runways, this fit model is running half marathons, checking out FlyBarre, and perfecting yoga poses.
The model and avid runner shows how the hotly anticipated Apple Watch can be used to train for—and run—a marathon.
From hardcore training to leg- waist- and butt-boasting selfies, check out the star's most fitspirational Instagram photos.
Queen B worked up a sweat for Michelle Obama's great cause. Watch the impressive video, and find out how you can support #GimmieFive.
Forget runs on cement or squat jumps in the sand. This new LA studio will put a spring in your step—literally.
Post-gym selfies, #motivationmonday posts, and mini workout videos prove these gorgeous women are much more than pretty faces.
Jennifer Aniston had to give up the gym to get the body required for a new role. Too much of a break or a much-needed rest?
Check out the moves used to sculpt some of the most coveted celeb bodies, from Minka Kelly and Jennifer Lopez to Sofia Vergara.
Dancing isn’t the only thing that keeps Julianne Hough in top shape. Challenging, efficient workouts with her trainer and friend, Astrid Swan McGuire, get her strong and totally toned.
The actress, singer, Dancing with the Stars judge, and Shape December cover girl shares her morning routine and how she shocked her body into shape.
The superstar singer brings back a seriously retro workout style—and looks absolutely gorgeous in the process.
Aside from cooking delicious food, these culinary stars know a thing or two about how to sweat. Find out how they keep fit despite a busy schedule.
The power couple puts those divorce rumors behind them.
Five fit women share their tips, tricks, and favorite products for looking gorgeous during and after your sweat session.