New research uncovers how heavy smoking rapidly disrupts blood and airway biology, revealing the hidden damage that accelerates disease risk in otherwise healthy adults. Study: The effects of heavy ...

It is well-known that smoking can increase the risk of developing lung cancer. But what are some of the lesser-known dangers of cigarettes? Heavy smoking could lead to a decline in the quality of your ...

Heavy smokers -- those who light up 25 times or more a day -- look to their cigarettes for comfort and companionship, according to a new study. In-depth interviews with 51 heavy smokers in the journal ...