Spirit Health Style Relationships Home Food Money World
6 of 16
Inside the Human Body

This page requires Flash 9. Download it here.

If you're trying to quit smoking, this could be the day you go cold turkey. The healthy lung (left) is generally pinkish and healthy, with a bit of damage from living in an urban area. The unhealthy lung (middle) comes from a smoker, and is riddled with dark tar from cigarettes.

What's even more worrisome than tar, according to Dr. Oz, is cancer. A cancerous lung (right) will have nodules of cancer cells that grow and spread, invading into everything around them.