Conversation so far:
How can I help my friend stop smoking?
Tips for friends and family of a smoker who's trying to quit. ... Do make your home smoke free, meaning that no one can smoke in any part of the ...
What is smoking's long term effects?
Smokers are more likely than nonsmokers to develop heart disease, stroke, and lung cancer. Estimates show smoking increases the risk: For coronary heart disease by 2 to 4 times. For stroke by 2 to 4 times.
Does smoking cause cancer?
Each cigarette can damage DNA in many lung cells, but it is the build up of damage in the same cell that can lead to cancer. However research has shown that for every 15 cigarettes smoked there is a DNA change which could cause a cell to become cancerous.

Question: What makes it so addictive?
Self-contained rewrite: What makes smoking so addictive?