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45 lines
2.1 KiB
Markdown
45 lines
2.1 KiB
Markdown
## How long could someone live if they became allergic to water to the point a mouthful worth of water sends their body into shock?
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* Author: u/None *
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* URL:
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* Score: 0
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* Created: 2018-09-03T15:18:58
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### Post:
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[deleted]
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### Comments:
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> **u/BoilingLeadBath** [+3] (42 minutes later)
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>
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> It seems you've answered your own question: if the effect is a true allergy, mediated by the receptors on immune cells that are well suited for detecting individual molecules, it would probably be triggered by the body's own water and so wouldn't work out so well for the patient.
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>
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> However, there's other mechanisms for an individual's unusually sensitivity to something, and in colloquial use these are often referred to as "allergies" as well... dermal water sensitivity is actually fairly common (try a search phrase like *water contact dermatitis*), with required amounts of exposure that suggest something like:
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>
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> 1) Wash-out of some required component of the skin
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>
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> 2) Ingress of some common mineral contaminant of water into the skin
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>
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> 3) Osmotic pressure in the skin
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>
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> So, if you want a hard-fantasy "otherwise-human witch who melts in the rain", take one of those causes of sensitivity and dial the effect up to 11.
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>> **u/None** [+1] (49 minutes later)
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>>
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>> [deleted]
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>>> **u/Nimelennar** [+3] (58 minutes later)
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>>>
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>>> Blood plasma is something like 95% water. Death would be instantaneous.
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>>>
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>>> If they were only allergic to water *above* a certain purity, though, they might be able to survive by drinking only beverages that are below that purity, and by slathering oil all over their skin to keep water from making contact. In that case, I don't see why they couldn't live on indefinitely.
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> **u/TBestIG** [+2] *Every second of quibbling is another dead baby* (2 hours later)
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>
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> Are you the same guy who’s obsessed with this concept who spammed several subs with it a few months ago? First pretending to be that girl and doing fake AMAs, then calling it a story you’re working on asking about how realistic it is, and now you’re back on yet another account talking about water allergies AGAIN
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