Absolutely brilliant 👌
Share your favorite movie (and other motion picture media) details, potentially with a shitty twist.
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In terms of human evolutionary history, our feet were generally filthy and very heavily calloused. Actually, a heavily calloused foot provides a significant survival advantage in the wild. Keep in mind that shoes are a new invention in evolutionary terms. I don't think you'll find answers in evolutionary psychology on this one.
And teeth naturally got yellow and worn down, from use or damage.
But we still like a perfectly straight ridiculously bright white smile because it's a sign of health and youth.
Same with feet, you're not going to find someone with perfect feet before shoes, but there would have been an obvious difference between a teenagers feet and a 40 year olds.
But back in the day "good" was mostly absence of parasites.
Well, relatively speaking anyhow. Just about everybody had them, it was more of a question of which parasites and how many – and this was largely how things were up until indoor toilets & plumbing became more common and of course still is in many areas.
Funnily enough our immune systems sort of co-evolved with some intestinal parasites, and not having parasites is one factor in people developing autoimmunity. Some autoimmune diseases can even be treated to some extent by purposefully giving you some specific parasite (can't remember which one, too lazy to search)
I mean, kind of?
An autoimmune disease is when your body attacks itself, and it's possible giving yourself a parasite gives it something else to focus on...
But man, that sounds like when people gave themselves tapeworms to lose weight. There was some vague logic to make it sound ok. But any medical professional that condoned it probably wasn't a very good doctor.
Especially if they are infecting people to treat autoimmune disorders
It's more complex than that. If someone is exposed to parasites when they're still developing, their chances of having autoimmune issues later in life goes down – the fancy way to say that is that exposure to some parasites lessens the chances of immune system dysregulation. Some parasite proteins can also be used to modulate the immune system to eg. treat asthma. See eg. Helminth Immunomodulation in Autoimmune Disease from 2017, abstract here:
Just because giving someone a tapeworm for weight loss is not a great idea doesn't really mean anything here. Immunomodulatory therapy with parasites isn't woo-woo despite how weird it may sound, and the idea isn't to necessarily give people worms (although that's not entirely ruled out either!) but to learn how they do what they do
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8977410/
You're right that people are trying it.
I never said no one was, I said only shitty doctors would prescribe it.
I didn't see anything about it being prescribed, but there have been studies.
The studies just show it doesn't work.