A stress evaluation apparatus includes an impedance measuring unit for measuring an impedance of a fluid discharged from a living body; a temperature measuring unit for measuring a temperature of the fluid discharged from the living body; a pH calculating unit for calculating a pH value based on the impedance and temperature of the fluid discharged from the living body; and a stress evaluating unit for evaluating a stress based on the pH value calculated by the pH calculating unit.

 
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> Method and apparatus for adjusting cardiac event detection threshold based on dynamic noise estimation

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