Its name is Coroco Meter (translated as “Soul Meter” in Japanese), but in reality, it is a device that allows users to regularly check their levels of anxiety and stress.
This unique invention comes from Professor Masaki Yamaguchi (Toyama University) and the Japanese company Nipro, as it measures a person’s stress levels simply by analyzing saliva.
The Coroco Meter weighs only 190 grams (as shown in the picture) and features a clear digital display that shows the stress level based on the amount of amylase (or amylase enzyme) found in the saliva. To take a measurement, users place a test stick in their mouth to collect saliva, insert the stick into the measuring device, and wait one minute for the result. The device is sold for $167, not including a set of 20 saliva collection sticks that cost an additional $29.
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