How can a sensor help determine the onset of labor?

At CES2017, Molly Dickens from Bloomlife explains how a sensor in the company’s smart pregnancy wearable allows a pregnant woman to automatically track and monitor the timing and duration of contractions. The passive sensor listens to the muscle activity similar to a heart monitor in hospitals. The application demonstrates what can be done with today’s readily available miniature microphone technologies. Got any ideas?

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