Fitness

Blake Lively Is "Feeling Very Proud" of Herself After 61-Pound Weight Loss

Meet MackFit, the Celebrity Trainer Behind Ariel Winter, Hannah Stocking, and Jordyn Woods (EXCLUSIVE)

Tone It Up Girls Karena and Katrina Share Their Tips for Making Your Fitness Resolutions Stick! (EXCLUSIVE)

Instagram Fitness Model Jen Selter Gets Kicked off American Airlines Flight for Standing up During Delay

Olympian Adam Rippon’s Ripped Bod Is the Result of Hard Work — Inside His Training Regimen (EXCLUSIVE)

Dita Von Teese's Diet: Here's How the Sexiest Woman in the World Keeps Her Killer Body

Celeb Trainer Tony Martinez Reveals How Janet Jackson Got Her Incredible Post-Baby Body (EXCLUSIVE)

The Fiercest Fitness Bloggers on Instagram Share How to Stay on Track in 2018

Ever Wanted Britney Spears’ “Slave 4 U” Abs? Celebrity Trainer Bobby Strom Is Here to Help (EXCLUSIVE)

Here's Why You Should Participate in the 2018 CrossFit Open (Even If You Think You Can't)

Fitness Model Ashley Nocera Is Playing Booty Flip Cup — and, TBH, We're Very Impressed

Khloé Kardashian Reflects on Her Transformation Ahead of 'Revenge Body' Season 2

25 Weight Loss Hacks From Kim Kardashian and More to Help You Nail Your 2018 Resolutions

CrossFit Athlete Brooke Ence Is Changing Beauty Standards One Red Carpet at a Time (EXCLUSIVE)

‘Vanderpump Rules’ Stars Jax Taylor and Brittany Cartwright Were Stuck in a Rut Before Their Weight Loss

This Four-Year-Old With a Six-Pack Is All the Gym Inspo You Need During the Holidays!

This Is the Diet That Got Britney Spears Her Insane Body — And It’s Shockingly Doable!

Here's What Happened When We Tried Kim Kardashian's Waist Trainer

Eva Longoria's Diet Consists Of "Eating Everything and Wine" and She's Still a Smoke Show (EXCLUSIVE)

You Can Actually Have an Allergic Reaction to Exercise!

Here's How to Get Nina Agdal's Bangin' Body, According to Nina Agdal (EXCLUSIVE)

Jennifer Lopez and Alex Rodriguez Prove That the Couple That Works out Together, Stays Together

Sofia Vergara's "Gigantic" Boobs Are Actually a Pain in the A** — "I’ve Had Them Since I Was 13"

Mel B Dropped 30 Pounds Proving There's Nothing Scary Spice Can't Do