Do not know: i really do not know what you mean i guess some people can control the parasympathetic and sympathetic effect in their body like their heart rate temperature it is amazing and rare but it has no real medical value enjoyed while it last and good luck
Answered 5/3/2017
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
7 doctors weighed in across 2 answers
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