摘要 |
A device to determine internal physiological parameters based upon the measurement of phenomena external to a person's skin. In one embodiment, a wristwatch apparatus is provided with sensors capable of measuring, for example, transpired vapors from the wearer's skin, sweat produced through the skin, or saliva deposited on the device. The measurement of predetermined parameters in these external media is compared against a library of internally measured parameters to determine the level of stress the wearer is experiencing.
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