I am no medical expert, but I don't think that "A" glass of wine would diminish performance ability or libido. When I go out with the guys for a beer these days, it is really two beers, and is something I NEVER did while W & I were "together", ever. I would have one or two beers a couple of times a week at home, with her. It is possible that the quantity I was consuming affected my libido, but it is merely conjecture. I am pretty sure my main problems were the testosterone, depression, and stress. Granted, the alcohol consumption affects the latter two of that list as well.
