Here is an easy way to begin a conversation about enemas, if indirectly. First, though, let me say that just bringing up enemas in almost any context is not likely to make as much of an impact on your friends as you probably imagine: it just isn't that big a deal for most people. I've always been open in promoting enemas for all kinds of purposes, and in my own use of them, too. A few friends have responded positively in varying and even surprising degrees - but those who don't just might comment of me jocularly that 'Of course, you're kind of weird about enemas' but none have run off screaming or hidden away their children when I'm around!
Anyway, I've posted before that in the last fifteen years we have come to the surprising knowledge that the enteric nervous system in the intestines manages the great bulk of neurotransmitters in our bodies - that includes what we think of as mood agents or brain chemicals - and that these compounds have primary roles as essential components of our immune systems and apparently only secondarily as mood agents. However, the 'we' that have come to know this is pretty much limited to endocrinologists and a few who really follow news about bottoms - but it is nonetheless well established.
This puts a different slant on a lot of enema lore. Ancient ayurvedic medicine prescribed enemas for migraine relief, not because they had anything to do with constipation, but because the vital essences of some sort were stuck in the intestinal chakra instead of getting released up to the brain chakra where they were needed. Substitute neurotransmitters instead of essences and you have a rather prescient explanation there. If enemas could be effective in that way, a similar mechanism can explain the very widespread observation that they almost immediately mitigate moodiness and irritability - and explain it a lot better than the idea that it is all connected to the physical discomfort of colon distension or just plain false observation. More: a girl in my college dorm tended to panic attacks, which she could feel slowly coming on; but she found by accident that taking a strong laxative suppository at the first sign would deflect the panic attck. We assumed it was just focusing all her energy and attention on pooping, but now I'd say the bowel stimulation worked by a more direct physiological mechanism in stimulating release of these agents.
This could also explain why enemas have been widely observed to minimize the severity of common illnesses not directly associated with constipation, despite deprecation of the idea by mainstream medicine. And this is at a time when the immune system roles of these intestinal neurochemicals are being studied more intensively and widely: for example, a study has recently begun to look at the immune-system roles of these agents as adjunct cancer treatments.
To be clear, there's not much written about the role of enemas or suppositories in stimulating the release of enteric neurotransmitters. That's largely speculation but based on common observation that has otherwise been simply ignored. A few medical researchers have offered suggestions very directly: that when the bowels are happy the neurotransmitters get distributed as they should be and block the sites for viral attachment; but when there's any problem in the intestines - which needs special attention and protection by immune agents because of its roles in waste and nutrient exchange in and out of the body - then the agents don't get distributed and the whole immune system suffers.
That last paragraph is speculative, but the vital role of the enteric system in management of neurotransmitters/mood-agents and the immune system is established if not widely known. Start by reading on the subject; the somewhat popular (if dry) introductory book is still 'The Second Brain' (1999) by Dr. Michael Gershon, a medical dean at Columbia.
So here is my point. It is hard to bring up enemas at church socials in any context. It is an awful lot easier to bring up immune systems. It is even easy to bring up surprising news about the immune system - even when it gets into one's insides and, cautiously, down there. You can get as deeply into intestines - so to speak - as you wish, reading your partners in the conversation, and even into enemas and suppositories. Chances are that one of them will remark that maybe that is why an enema made him feel so much better the other day even before you bring it up. At very least, it asserts a clear and interesting physiological basis for whatever you say about enemas, instead of assuming that you are in effect saying that this is how terribly weird you are....
-jillie