Apparatus, other than for medical purposes, for measuring physiological stress, namely apparatus for measuring blood pressure, heart-rate, heart-rate variability, oxygen-saturation, C02 levels, respiration rates, or temperature, EEG (electroencephalogram), EMG (electromyogram), SaO2 (oxygen saturation); physiological apparatus, other than for medical use, namely, apparatus for measuring blood pressure, heart-rate, heart-rate variability, oxygen-saturation, C02 levels, respiration rates, or te...