Simon Cowell once quipped that a bigger stage was in order when she stepped on it, but former "American Idol" contestant Mandisa is the real winner now. She recently lost 75 pounds.

Get ready for spring with a pair of new running shoes. Kristen has the top picks of 2009.

Dane Patterson was eliminated from "The Biggest Loser" three weeks ago, but what he really needs to be ashamed about is faking the last three miles of his marathon. Does his redo redeem him?

High protein diets may help you trim the fat quickly, but are they really the best choice? Ashley's got the scoop. (Hint: If it's got the word "diet" in it, it's probably not.)

Jonny thinks cardio isn't the best exercise for weight loss, but he says that's not a reason not to do it. With cardio losing out to the more efficient interval training, are you still taking those long walks or run?

Karla's found that weight loss has changed the way she looks at her love life ... desperately seeking balance. Did weight loss affect one of your relationships in a positive or negative way?

Experts think they've narrowed down the pace of a solid, healthy walk -- 100 steps a minute. But did they account for varying levels of fitness?

Shin pain in my nemesis, which is why I want to hug Fitz for her advice on preventing and treating shin pain.

Fit and 50, Megan Mullally loves Pilates and was once addicted to step classes. Learn more about how this "In the Motherhood" star stays looking so hot.