uHumans can develop
asymptomatic habituation or tolerance
to high levels of all kinds of
stressors;
uBut if they lose their habituation via withdrawal, they may then also
become hypersensitive to
very low levels of the same stressors
(via modulation of nerve action firing
potentials by endogenous CO)
uHigh Altitude
(consider local resident vs. Kansas tourist)
uLoud Noise (consider
rock musician vs. librarian)
uHigh Heat (consider
migrant farm worker vs. office worker)
uBright Light
(consider Inuit vs. coal miner)
uPollen & Dander
(consider child raised on farm vs. suburban home)
uETS (consider smoker
vs. non-smoker vs. ex-smoker)
uTrauma (consider
tolerance of deployed soldier in war vs. retired)
uTemporary
Multi-Sensory Sensitivity is associated with some transient conditions (migraine and PMS again) but may persist
for years after
untreated chronic carbon monoxide poisoning