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riddler

Skydiving sweat more potent than exercise sweat

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http://www.cnn.com/2009/HEALTH/08/19/stress.sweat.smell.pheromones/index.html

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Researchers took sweat samples from 144 people who had put themselves in the somewhat stressful situation of tandem skydiving for the first time. Each participant was strapped to an expert skydiver, and each pair jumped from 13,000 feet. Control samples were taken from people who had run on a treadmill.

In the first trial, sweat samples from the experimental and control conditions from 40 donors were given to eight males and eight females while their brains were scanned using functional magnetic resonance imaging. This procedure was repeated with 40 more donors and a group of 16 different participants with the same gender ratio.

Imaging results indicated that the amygdala, an area of the brain associated with emotion, was more active when exposed to the skydivers' sweat than to the runners' sweat. An additional experiment showed that participants could not discriminate between the sweat samples based on smell alone.

Researchers then conducted a behavioral test in which participants separately breathed the "exercise" sweat and the skydiving "stress" sweat while judging the emotions conveyed in pictures of faces on a computer screen. People tended to discriminate better between neutral and angry faces when exposed to the "stress" sweat.

The results suggested that more activity in the amygdala is associated with more awareness of possible threats, Mujica-Parodi said.




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One of Wysocki's studies showed that when women were exposed to male underarm sweat, they became more relaxed and less tense. That paper also found that male sweat may affect the length and timing of a woman's menstrual cycle.


Trapped on the surface of a sphere. XKCD

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Well, only from personal observation, but skydiver farts are definitlely more potent than the average.

I mean, what the fuck are these people eating? I've opened up my septic tank for inspection and it doesn't smell that bad.
" . . . the lust for power can be just as completely satisfied by suggesting people into loving their servitude as by flogging them and kicking them into obedience." -- Aldous Huxley

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Well, only from personal observation, but skydiver farts are definitlely more potent than the average.

I mean, what the fuck are these people eating? I've opened up my septic tank for inspection and it doesn't smell that bad.



Expantion of gases at altitude:P


Don't you mean expulsion of gasses at altitude?
Andy
I'll believe it when I see it on YouTube!

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