As if women needed another reason to kick the habit, a new study shows that smoking can speed the ticking of the biological clock, hastening the onset of menopause. Researchers found that heavy ...

In a new scientific study, researchers have dedicated considerable time to unraveling the intricacies of cigarette smoking's effect on the human body. Scientists embarked on extensive research to ...

A new study published Tuesday finds that most DNA damage caused by smoking reverses itself five years after a person quits, but changes in at least 19 genes can last decades. The team studied 16,000 ...