Yahama doesn’t just make motorcycles and saxophones; they also work with companies like Nipro Corp. to make frightening gadgets like this: a stress-detection device that works by analyzing the concentration of amylaze in a person’s saliva. Nature already has a perfect spit stress detection method: If you receive a blast to the face, the subject is slightly agitated or insane. If you see drool, the subject is totally chill or dead.
