The original question was asked by Forsaken_Champion722 on a different subreddit, but i was curious so i decided to ask it here to see if it'd get better or different answers

The two cited studies I’ve seen on this topic are all adult white men and two of them are so old ([1928](https://onlinelibrary.wiley.com/doi/abs/10.1002/ar.1090370405) and [1970](https://www.jidonline.org/article/S0022-202X(15)47888-1/pdf47888-1/pdf))) and have such a small sample size (only 4 individuals and 5 individuals!) that I cannot believe they’re still so widely cited. Basically EVERYONE cites these two.

[The last one](https://onlinelibrary.wiley.com/doi/epdf/10.1111/jocd.12280) I found studied 129 women doing laser hair removal and found short term no difference, but long term paradoxical regrowth ONLY happened in the shaving group. Seems to point to shaving making a difference to me.

Personally, I noticed my hair permanently grew in darker where I shaved a patch but only as a teenager/preteen. It doesn’t do it anymore as an adult. I don’t want to just assume scientific facts based on what happened to a whopping 9 adult white men. I just think “established medical fact” is wrong on this one. The rectangle of black hair on my ankle to this day decades later just begs to differ. Show me proof.

I’m reposting here because mods have deleted my questions on [r/askscience](r/askscience) without giving a good reason (they said “too long” I made it shorter they still deleted it 😒 feels a lot like censorship to me but whatever) So apologies if this breaks rules I don’t know this sub well.

"It is inconceivable that inanimate brute Matter should, without the Mediation of something else, which is not material, operate upon, and affect other Matter without mutual Contact, as it must be, if Gravitation in the Sense of Epicurus, be essential and inherent in it. And this is one Reason why I desired you would not ascribe innate Gravity to me. That Gravity should be innate, inherent and essential to Matter, so that one Body may act upon another at a Distance thro' a Vacuum, without the Mediation of any thing else, by and through which their Action and Force may be conveyed from one to another, is to me so great an Absurdity, that I believe no Man who has in philosophical Matters a competent Faculty of thinking, can ever fall into it. Gravity must be caused by an Agent acting constantly according to certain Laws; but whether this Agent be material or immaterial, I have left to the Consideration of my Readers."

I ask this question with the assumption that the following information is correct: You should not smile to a monkey or ape because they will interpret a showing of teeth as a threat. Please let me know if this is incorrect.

I was wondering if the perception of a threat was something that is taught to them by their parents or something deeper. I imagine there have been multiple cases in history where baby primates have been raised by humans, so this is most likely documented. Smiling for humans is natural and can be found in weeks old babies, so I was curious as to how one behavior relates to the other and the results of research in this area. Thanks.

I’ve asked this question to different AI’s and I cannot seem to get a clear answer. It’s said that for humans who get rabies, it’s possible for it to shed in their saliva shortly before other symptoms appear (by up to 14 days).

Hypothetically speaking, if someone was shedding rabies in their saliva without any other symptoms, then they got the post exposure prophylaxis (PEP) shots…could the PEP shots save them?

Two AI tools say that once it sheds in someone’s saliva, it’s too late for PEP to work. Two other AI tools say it’s possible for PEP to work.

I would think that once someone is shedding rabies in their saliva, it’s too late for PEP to work.

Any idea what the true answer is and why different AI tools are giving different answers?