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While both substances can have positive effects on mood and cognition, they can also lead to negative physical and psychological effects

Millions of people around the world are looking for ways to reduce the harm caused by cigarettes, but are not ready to give up tobacco completely

Nat Rev Cancer (2009) 9(2):95107.10.1038/nrc2584 38 LiYChangSCNiuRLiuLCrabtree-IdeCRZhaoBet alTP53 genetic polymorphisms, interactions with lifestyle factors and lung cancer risk: a case control study in a Chinese population

Incidentally, men should also stop smoking during the fertility phase: The sperm of smokers contains more genetic damage, heavy metals and aggressive oxygen compounds than that of non-smokers