Way back when I had to take a physiology course, ironically pretty late in my academic career. Since it's a class with zero entry requirements, it's filled with students fresh out of highschool or potential nurses. From my experience, both are the most likely to drop out of class or to ask the dumbest questions, but I had somebody in particular who looked absolutely dumbfounded whenever anything chemistry-related came up. At one point the class got onto the topic of the difference between "qualitative" and "quantitative" data and dilution. At that point, this lady asked "Then...what about homeopathic medicine?"
Homeopathic medicine, in case you don't know, is quackery which states that the
more dilute a substance is, the more powerful it is, defying all laws of physics.
One of the students next to her very flatly jokes "that's more, uh,
'qualitative' medicine than what we're doing." Not understanding, she asked again,
"So how does homeopathic medicine work?"
I turned to her with as bright a smile and as bubbly a voice I could muster I said "it doesn't!" Then she furrowed her brow and stared into space as if overwhelmed by confusion.
I also have a story related to somebody I knew who kept trying to push homeopathic medicine on her and her family that I posted in a similar thread that I can repost here:
I could talk for hours about alternative medicine and quackery...so I will. I also was friends with a much older gentleman who was having problems relating to his spinal column. As far as he knew, though, it was just a problem with his back, so he went to see a chiropractor. I wasn't aware of this at the time--and he wasn't either, nor most people in general--
but chiropracty is also alternative medicine, with its practitioners often needing zero medical experience or training. As such, they'll
also push all their new-age nonsense and blame everything wrong with you as something wrong with your spine. Or "leaky gut," which is essentially an alternative medicine meme at this point. Lo and behold, the chiropractor immediately ruined his back and led to it being twisted around as if you were to take his spine and wring it like a wet towel. Said chiropractor insisting on doing even
more strenuous experiments until the older gentleman did some research and found out about chiropracty being equatable to quackery.
However, I have a...I guess you can call it "favorite" example of alternative medicine ruining people. An old hoax and sign of quackery a long time ago when radiation was discovered was that radiation was good for you. Various products were sold around the time claiming to contain "radioactive material" that could regrew hair, restore youth, and cure disease. A particularly hilarious example is the
radium drinking jar, which was said to contain active radium in its composition. The intent was to fill it with water, let it sit overnight, and down it in the morning to get your daily amount of healthy, life-giving radiation. Of course, it killed people, but not because of its intended mechanism. The "radium" contained inside was actually depleted, the jars instead contained radon (what some radioactive particles become once they are depleted) which was poisonous, killing its consumer. Oops.
Another thing that's really big about these people is anti-GMO, or "genetically modified organisms." Basically, genetic modification is just altering the DNA of plants or animals on a genetic level. It's super-limited, though. The best we can really do is essentially "copy" and "paste" genes from one plant or animal into another, or create DNA sequences which can only do the bare minimum (which is create a protein chain--arguably the simplest action DNA can possibly do). It is, however, excruciatingly hard to find good research on GMO when everything is polluted with paranoid, incoherent hysteria. Anti-GMO stuff is filled with nonsense like this:
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I suppose "frankenfood" is an accurate descriptor since you are just meshing the best qualities of plants together, but the rest are pure nonsense. The best way to see GMO is basically seeing it as that we've been controlling the DNA of plants across decades of selective breeding and farming--all we're doing now is the same thing directly, with more control and in faster time. The hysteria involving GMOs doesn't ever stop, though. If you visit any website against it, you'll often find unsourced claims, or sourced claims which refer back to unsourced claims, or websites citing each other for the same claim in a loop. It's ridiculous. My favorite example (which was actually sourced) was that they link the explosive rate of soy allergies with the genetic modification of soy. Which is true, when soy begun being genetically modified in 1994, allergies did explode exponentially...
along with the production and consumption of soy because it was genetically modified to increase yield.
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Oops. Of course, the hysteria regarding GMO doesn't stop there, either--
people have gotten killed because of the fear over genetic modification. Greenpeace--an anti-GMO organization--had brainwashed an African village suffering from a drought and famine by campaigning to warn them about a genetically modified shipment of food and seeds coming over to them, modified with the genes of some desert plants to increase drought resistance. Said genes have already been proven effective in sugarcane and thus, despite what Greenpeace believes, the seeds were sent for the sake of helping the Africans, not testing the seeds on them. Because of Greenpeace, the Africans rejected and destroyed the food and continued to starve to death.
Oops.
Another good source of stupidity is some of the more fanatical sides of veganism.
This website in particular is one that, frustratingly, came up frequently when I was doing a quick study involving digestion a while back.
This site also espouses a claim common among the particularly insane vegan community, which is that the human body is not fit to eat meat, and meat actually remains in the human digestive system and rots away. For some reason. And of course none of this nonsense is cited, or cited incorrectly so that the study is impossible to find.
Anyway, that's all I can recall from the top of my head, but if you're interested in new-age quackery and fake magical nonsense, a good person to follow is James Randy, retired magician and public speaker who has made a career of debunking this nonsense. James Randi's own organization is famous itself for offering I believe a $100K reward for proving the existence or effectiveness of paranormal or alternative medicine stuff, although the challenge has been since rescinded after nearly two decades of failures attempting to claim it.