More evidence of cigarette smoking's harmful effects

September 9, 2010 2:48:15 PM PDT
Two new studies find smoking cigarettes can harm sperm, both in smoking men who may become fathers and in sons born to women who smoked during pregnancy.

Both studies in the journal Human Reproduction suggest that both men and women who hope to conceive should kick the habit.

The first study finds men who smoke heavily may experience fertility problems stemming from a drop in a certain protein crucial to sperm development as well as damage to sperm's DNA.

The other study suggests, for women who smoke early in pregnancy, it could ultimately compromise their son's reproductive health.


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