Carl Fredrik Ahl Posted January 29, 2019 Share Posted January 29, 2019 (edited) Hi, This source:https://www.medicalnewstoday.com/articles/317511.php says that: When the body is dehydrated, the brain can temporarily contract or shrink from fluid loss. This mechanism causes the brain to pull away from the skull, causing pain and resulting in a dehydration headache. I wonder why the brain pulls away from the skull and why that hurts. Edited January 29, 2019 by Carl Fredrik Ahl Link to comment Share on other sites More sharing options...
zapatos Posted January 29, 2019 Share Posted January 29, 2019 (edited) "When the body is dehydrated, the brain can temporarily contract or shrink from fluid loss. This mechanism causes the brain to pull away from the skull..." Edited January 29, 2019 by zapatos 1 Link to comment Share on other sites More sharing options...
Carl Fredrik Ahl Posted January 30, 2019 Author Share Posted January 30, 2019 16 hours ago, zapatos said: "When the body is dehydrated, the brain can temporarily contract or shrink from fluid loss. This mechanism causes the brain to pull away from the skull..." Yeah I know, but I wonder why will it do that? Link to comment Share on other sites More sharing options...
DrP Posted January 30, 2019 Share Posted January 30, 2019 2 hours ago, Carl Fredrik Ahl said: Yeah I know, but I wonder why will it do that? What happens when you dry a potato or a cucumber? (it shrivels). What happens when you let the air out of a balloon or a tyre? Link to comment Share on other sites More sharing options...
Carl Fredrik Ahl Posted January 30, 2019 Author Share Posted January 30, 2019 1 hour ago, DrP said: What happens when you dry a potato or a cucumber? (it shrivels). What happens when you let the air out of a balloon or a tyre? Yeah ok thx for explaining. No I wonder why does it pull away from the skull? Is it because the movement when it shrivels? and what happens when it pull away for the skull except feeling pain. Is there any benefit for the brain to do so? Link to comment Share on other sites More sharing options...
DrP Posted January 30, 2019 Share Posted January 30, 2019 Just now, Carl Fredrik Ahl said: No I wonder why does it pull away from the skull? Is it because the movement when it shrivels? Seems to be the case. 1 Link to comment Share on other sites More sharing options...
Carl Fredrik Ahl Posted January 30, 2019 Author Share Posted January 30, 2019 1 minute ago, DrP said: Seems to be the case. Yeah ok, thx for the answer. Now I wonder what happens when it pull away for the skull except feeling pain. Is there any benefit for the brain to do so? Link to comment Share on other sites More sharing options...
DrP Posted January 30, 2019 Share Posted January 30, 2019 (edited) 44 minutes ago, Carl Fredrik Ahl said: what happens when it pull away for the skull except feeling pain. Is there any benefit for the brain to do so? I doubt it has any choice in the matter. An orange that is shrinking in size due to water loss doesn't choose to do so and doesn't 'benefit' from it - it just does it via the laws of physics. If you deflate something it shrinks. The pain is probably due to it NOT being beneficial and the pain is telling you to drink dome water to stop your brain from drying out and dying. Edited January 30, 2019 by DrP 2 Link to comment Share on other sites More sharing options...
dimreepr Posted January 30, 2019 Share Posted January 30, 2019 2 hours ago, DrP said: I doubt it has any choice in the matter. An orange that is shrinking in size due to water loss doesn't choose to do so and doesn't 'benefit' from it - it just does it via the laws of physics. If you deflate something it shrinks. The pain is probably due to it NOT being beneficial and the pain is telling you to drink dome water to stop your brain from drying out and dying. 1 you're so patient - you get plus one Link to comment Share on other sites More sharing options...
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