Dr. Oz's trainer, Joel Harper walks you through an ab workout to tone your tummy. This simple program demonstrates variations for beginners and experts, allowing you to tailor your workout for a lean stomach in only 15 minutes.

Check out celebrity trainer Joel Harper’s home workout DVDs.   

Want to know how to look marvelous without splurging so much? Dr. Oz invites three beauty experts to share the smartest ways to save money while looking fabulous starting from your hair and makeup tools to the beauty products you use.