“The show must go on,” so they say. These days, whether you’re an opera singer, a teacher, or just someone with a lot of video meetings, you rely on your voice to work. But what if your voice is under threat? Work it too hard, or for too long, and you might find that it suddenly lets you down.

Researchers from Northwestern University have developed a new technology to protect against this happenstance. It’s the first wearable device that monitors vocal usage and calls for time out before damage occurs. The research has been published in the Proceedings of the National Academy of Sciences.

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