Dads-to-Be Need to Stop Drinking!
We always tell dads to stop drinking at least 3 months before conception to help the sperm be healthier but also for epigenetic reasons. What I always say is, "the health of both parents at the time of conception, epigenetically affects which genes get turned on and off in the baby." I'm usually pretty convincing, but now we have even more evidence.
This article says, "compared to non-drinkers, fathers who drank during the three months before conception were 44% more likely to have babies born with congenital heart disease." That should be enough to convince the men to put down the drink for a few months. Months of non-drinking well spent.