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.

Among other side effects, smoking does cause blood vessels to constrict. This can lead to sometimes life threatening events like heart attack or stroke. Smoking is linked to a wide range of negative ...

Tobacco smoke carries several harmful toxic chemicals that can damage skin cells. Smoking reduces the amount of oxygen reaching the skin, resulting in increased inflammation, delayed wound healing, ...

Add Yahoo as a preferred source to see more of our stories on Google. Notice your blood pressure has been creeping up lately? Smoking not only harms your lungs, but it also causes spikes in blood ...

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. Although ...