Take a Deep Breath

At 29, Aubrey says she's smoked for more than half her life. Those years of smoking have already done some damage to her body, both inside and out. If she continues to smoke, the damage will only intensify.

On the left is a computer model of what Aubrey could look like in 30 years if she stops smoking now. "You'll age a little bit," Dr. Oz says. "Your hair will change; your skin won't be quite as bouncy. But when you have four grandkids, you're still going to look pretty hot!"

On the right is what Aubrey could look like if she keeps smoking for the next 30 years. "The smoking sucks up nitric oxide, a very important chemical that gives your skin bounciness. It also destroys the arteries of the body. So you see the wrinkles, especially this pattern of wrinkle around the lips? Very typical of cigarette smokers."

The difference on the outside between "nonsmoking Aubrey" and "smoking Aubrey" pales in comparison with the difference on the inside. "The inside of that woman … is not just rusting out the infrastructure of her skin," Dr. Oz says. "She's rusting her kidneys, her heart, her brain, your fertility, your sexuality. It all goes the same way."