Merry Christmas -- and boy do we have a gift for you. We're going to help you shrink a size. Not just yet, though. You've got one week to ride out your holiday hoopla. Then it's time for the makeover of your dreams.

Beginning January 1 and for the entire month, That's Fit will team up with AOL Health for America Takes It Off: Shrink a Size. Just like we did in May, we'll issue you a healthy challenge every Monday, an opportunity to anonymously weigh-in on Wednesday and a chance to view reader weight loss results on Friday. We'll also head you in the direction of great tips and tricks for realizing your diet and fitness goals for the new year.

Seven days, and you'll get to unwrap this gift of good health. We promise it will be worth the wait.