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Dr. Lydie Hazan: Take us seriously!

Related Article: Learn more about fitness.

Dr. Lydie Hazan offers tips to get you started on the National Body Challenge. Learn more about fitness in this video from Discovery.

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National Body Challenge 2008: Time And Motivation (3:45)

Dr. Pam Peeke explains how to find the time for exercise and a healthy lifestyle.

Dr. Pam Peeke: Fit to Live (0:48)

Watch Dr. Pamela Peeke run the same gauntlet her participants did in her "Fit to Live" special. Learn more about fitness in this video from Discovery.

National Body Challenge Registration (0:39)

You've survived the holidays! Now it's time to register for the 2007 National Body Challenge. Learn more about fitness in this video from Discovery.

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All Star Fitness: The Winner of the Body Challenge (3:43)

The competitors discuss the lifestyle changes they have made, and Kym is declared the winner of the Body Challenge.

All Star Fitness: The Final Workout Part II (2:58)

Erik, David, and Susan have their final workouts and check off some of their goals for the Body Challenge.

All Star Fitness: The Final Workout Part I (3:28)

Charlene, Chris, and Kym have their final workouts and check off some of their goals for the Body Challenge.

All Star Fitness: Charlene and David's Journeys (2:36)

A review of the results of Charlene and David's twelve weeks and three respective goals.

All Star Fitness: Reviewing Susan and Erik's Journeys (4:32)

A review of the result of Susan and Erik's twelve weeks and three respective goals.

All Star Fitness: Reviewing Kym's Journey (3:20)

A review of the result of Kym's twelve weeks and three goals: run around the block easily, reduce breast size, and a career as a plus-size model.

All Star Fitness: Reviewing Chris' Journey (4:04)

A review of the result of Chris' twelve weeks and three goals: six-pack abs, mountain biking, and bungee jumping.

All Star Fitness: The Three Week Weigh In (6:35)

At three weeks, the contestants have their weights measured.

All Star Fitness: Making Weight Loss Resolutions (1:59)

The celebrity challengers have spent the last three weeks exercising their willpower and their bodies. Each challenger makes three personal resolutions that he or she hopes to accomplish by the end of the competition.

All Star Fitness: More Exercise Plans (3:22)

David, Charlene, Erik, and Kym determine their exercise plans with their personal trainers.