Recent research has shown that smoking weed does not cause lung cancer[1], unlike smoking tobacco. A separate Harvard study indicated that marijuana may be hel

Recent research has shown that smoking weed does not cause lung cancer[1], unlike smoking tobacco. A separate Harvard study indicated that marijuana may be helpful in treating lung cancer, reducing tumor growth[2]. However, the effects of smoking weed seem pretty different from alcohol to me. So depending what you want out of alcohol, it may be a poor substitute. But the health risks of weed are nominal. It's one of the safest recreational drugs mankind has come up with. (Smoking anything too much can harsh out your lungs, but weed can be eaten in foods, vaporized, etc.) [1]: http://www.webmd.com/lung-cancer/news/20060523/pot-smoking-not-linked-to-lung-cancer http://www.webmd.com/lung-cancer/news/20060523/pot-smoking-n... [2]: http://www.sciencedaily.com/releases/2007/04/070417193338.htm http://www.sciencedaily.com/releases/2007/04/070417193338.ht...