Smoking just one cigarette a day has a much higher risk of developing coronary heart disease and stroke than expected — about half the risk of smoking 20 per day — concludes a review of the evidence published by The BMJ. The researchers say their findings have important consequences for many smokers and health professionals who believe that smoking only a few cigarettes carries little or no harm. They argue that smokers should stop completely instead of cutting down to significantly reduce their risk of heart disease and stroke.

 

See original article at: https://www.sciencedaily.com/releases/2018/01/180125230308.htm