Add Yahoo as a preferred source to see more of our stories on Google. Melanie Griffith is a chain-smoker who continues to spark up, despite her not-so-distant bout with skin cancer. Now, loved ones ...

A 52-year-old Chinese man completed the 26.2-mile Xiamen Marathon in three hours and 33 minutes. He was ultimately disqualified for chain-smoking cigarettes on the course. Get more market-moving news ...

Smoking tobacco is so harmful to the body that it changes a person's immune system, leaving them vulnerable to more disease and infection even years after they've quit, a new study found.Video above: ...

Smoking, and its harmful substances such as nicotine, can harm almost every part of the body, including the brain. It can also lead to other brain conditions, such as cancer, dementia, and stroke.