Sympathetic nervous system dominance is not a genetic indivdual
characteristic. If this system is dominant it is an indication that the
body is spending a lot of time detoxing. This system speeds up
metabolism and therefore the detoxification of unwanted endogenous and
exogenous toxins. I am a retired neurophysiologist and am publishing a
paper about this, but it will probably not be published for another
year.

My best, Ellie