Hi warpig - I tend to agree with you, although it never seemed to affect hard-drinking working-class men in years gone by. They all seemed to end up with very large families. Perhaps it's a combination of what goes into drinks these days, plus all the food additives - but yes, heavy drinking can cause a low or poor sperm count. I'd say that the risk to a baby'd come from a mother who drank a lot of alcohol, not the father, as it's her blood that flows through the placenta to the child.