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Post by silverdragon on Apr 4, 2018 8:01:36 GMT
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Post by mrfatso on Apr 4, 2018 10:10:08 GMT
From an evolutionary basis releasing a protein factor that thickens the blood making it clot easier if you are wounded makes sense if you are scared and anticipate receiving a wound.
Our bodies cannot distinguish if the fear we have is from a movie or a real situation.
I suppose you could do an experiment where you show people a nice fluffy move of kittens etc, ( unless they were kitten phobic) and take blood, and test for this factor then do the same after showing them a scary one and see if the levels were elevated. A further test would be to put them in a situation that was really threatening and see if the factor was raised even more.
It would require quite a few invasive medical tests, taking blood though something MBs might not want to do its not like sampling urine or Fart gases that come out anyway.
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Post by GTCGreg on Apr 4, 2018 14:13:54 GMT
It would require quite a few invasive medical tests... Like chopping off a finger and see who stops bleeding first? Sounds like a truly Mythbuster's style medical test. |
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Post by the light works on Apr 4, 2018 15:45:19 GMT
this sounds an awful lot like quantum bloodletting - in which the experiment may alter the results of the experiment.
but I think we've got enough of a basis for emotional state changing blood chemistry and pressure to say the idea does have merit.
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Post by silverdragon on Apr 5, 2018 6:39:48 GMT
Taking a blood sample, as long as its done by professional health people, and sending those samples for analysis, as long as its nothing near as much as say blood donations, and is more the kind of level of anti-doping levels of athletes, I cant see a problem with that being allowed?..
Making it CLEAR that this is a Doctor doing this analysis and it isnt even possible to do this at home even if you were daft enough to try?.
But to the fear factor and blood chemistry.
In a fight-or-flight event, now I would have said, obviously erroneously in some parts, your heart runs faster to provide oxygen to the muscles that may need it, and the over-oxygenation of those muscles making them twitch is a known side effect of this, thus the "Shaking with fear" is not just plausible but often confirmed, but doing all that, wouldnt it be better for a body to chemically alter its own blood to thin it to make it easier to pump around?. THAT is the part I now suspect is wrong?.
Is it that it makes it thicker by producing more red blood cells to carry the expected oxygen needs.
Obviously, I just dont know...
And that is the start of science, isnt it?.
As for the differing tests, if taking the blood may alter the test, then do the tests on separate days to allow the blood to recover between tests overnight?
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Post by mrfatso on Apr 5, 2018 7:51:04 GMT
Thinner blood might be worse as it would not have as many red blood cells in it to carry oxygen to the limbs when it's needed, but that's what Evolutionary Biologists and Biochemists try to figure out.
Think of it like the RON rating of a petrol the higher the better for more performance.
The timing of such tests would have to be worked out taking scientific advice, is overnight long enough for the subject to recover so as not to affect the results? Should it be longer say a week or could it be shorter a few hours?
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Post by silverdragon on Apr 5, 2018 8:16:03 GMT
Thinner blood might be worse as it would not have as many red blood cells in it to carry oxygen to the limbs when it's needed, but that's what Evolutionary Biologists and Biochemists try to figure out. Think of it like the RON rating of a petrol the higher the better for more performance. The timing of such tests would have to be worked out taking scientific advice, is overnight long enough for the subject to recover so as not to affect the results? Should it be longer say a week or could it be shorter a few hours? But what else is in the blood... it carries "nutrients", of course, but I was thinking that those would be suspended in a fight-or-flight situation high on adrenalin needing a quick burst of pure energy alone from the existing muscle to run or fight?. I suppose we must first ask, other than white and red blood cells, what is the makeup of blood in normal use, and how exactly does it alter in differing situations. |
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