It kills more than breast, colon and pancreatic cancer combined. But a diagnosis doesn’t have to be a death sentence. Click here to take Dr. Oz's Kick the Habit challenge and promote healthy lungs.

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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.