Cardio Workouts, Metabolife and Jemma Arterton - Week in Review - February 16 to February 22

Could you give up your cardio routine and still be fit? There are trainers who think cardio is totally unnecessary. Jacki's not giving up her cardio routine, though. Would you?

Easy button alert: Jonny's got the most effective weight loss tool ever ... and it's totally free.

Cutting calories isn't hard, says Fitz. Here are a few techniques for cutting 100 calories out of your diet.

Outdoor workouts never looked so fun -- or painful. "The Biggest Loser" contestants take their workouts outside and end up in a mud-wrestling match.

They say you can lose five pounds just by standing up straight. So check out these four exercises to improve your posture.

Metabolife mastermind Michael J. Ellis is released from prison, just as his book hits the shelves.

In Hollywood, a healthy body gets criticized for being fat. But Bond girl Jemma Arterton refuses to go the Hollywood super-skinny route.

Barbie's puts on weight in a new ad for Active Life. But we wonder: Is shame a healthy way to get people to exercise?

Once a sprinter always a sprinter? Jean Hirst, 72 and a former sprinter, chases down three teen girls who steal her purse, despite not having run a race in 50 years.

Kill your cravings with celery juice? Kristen says it just might work, but you'll have to choke down a glass of celery juice to find out. Has anyone ever tried this? Does it work?

Have a great week, everyone!