Menstruation and Holy Communion

I remember once when a friend was sharing with me his distress at the liberalism afflicting his Protestant denomination, and the fact that many of their clergy were denying such things as the virgin birth and the divinity of Christ. While murmuring sympathetically, I mentioned that such denials were not the same problem in the Orthodox Church. He then asked me what sort of things we did argue about. When I replied, “Well, things like whether or not a woman can receive Holy Communion while she is menstruating”, he looked at me funny. He didn’t ask, “What planet are you guys on?”, but I could tell he was thinking it. Loudly.