Today I come across this item:
"No matter their gender or orientation, beer-lovers are 60% more likely to be okay with sleeping with someone they’ve just met."
That explains a lot. Alcohol may or may not have an impact on the human genome, but clearly beer-drinkers are going to populate the Earth.
John's put together a bunch of great events, btw, and has a bunch more planned, so follow his blog so you too can attend.
He serves beer... ;)