Running to catch a bus or climbing a few flights of stairs can make a difference, data shows.

A new study adds to emerging evidence that exercise is a treatment option for depression.

A new study finds that women experience greater benefits than men with lower amounts of exercise.

Edna Giordano, 91, still lives on her own and goes to the gym almost daily. Her fitness routine has made her a social media star.

As NASA astronaut Frank Rubio returns home after 371 days spent in space, an expert discusses the physical and psychological changes to the human body in space.

Tricia Bryan recommitted to her health and lost 60 pounds after giving birth.

Meet 102-year-old Jean Bailey, who leads fitness sessions at Elk Ridge Village, a senior living community in Nebraska.

"GMA" has curated a list of the best places to shop for spring-ready workout wear this season.

Liz Rock, of Boston, lost 150 pounds and became a fitness instructor.

"Running has been my therapy, my meditation, my escape for the past 25 years."

Elizabeth Sanders lost weight so she could be more active with her kids.

SKIMS aren’t the only thing Kim Kardashian relies on to look fire in every outfit. She also puts in work with celebrity trainer Melissa Alcantara.

Nike master trainer Kirsty Godso on the best ab moves to do with no equipment.

Lacey Stone shares a workout that can be done while you watch TV.

Gena Laielli's burpee total is expected to break a world record.

Fit pro Holly Rilinger shares moves to try this summer.

5 moves to tone and tighten the arms for summer.

Aniston recently said boxing is her new favorite workout.

Amanda Tighe, 33, started her own platform, AdaptDoRepeat, to inspire others.

Itsines, who has more than 11 million Instagram followers, is expecting her first child.

It’s hard to find the motivation to workout sometimes but these outfits will make you want to work up a sweat.

Zee explains why she is OK with not meeting the goal she set.

Climbing three flights of stairs three times a day made an impact.

Ginger Zee's trainer, Mark Langowski, teaches us how to do a pull-up with perfect form to help Zee meet her 2019 New Year's goals to do eight perfect pull-ups.

Don't let your 2019 resolutions slide because of the wrong shoe.

Celebrity trainer Anna Kaiser shares must-try moves for brides-to-be.

Crunch Fitness trainer Lee Lawrence shares his three tips for success at the gym.

Yoga instructor Heidi Kristoffer, a mom of three, shares tips for new moms.

Tone House coach Alonzo Wilson shares a high-intensity, at-home workout.

Celebrity trainer Holly Rilinger has the solution you need to get moving.

ABC News' chief meteorologist and mother of two shares a New Year's goal.