New quantum sensors measuring brain activity have the potential to revolutionize our understanding of how humans respond to sleep, movement, diet, and aging. More versatile and comfortable than traditional scanners, helmets incorporating highly sensitive quantum magnetic field sensors are being commercialized. In this article, IDTechEx overviews the science behind these new wearable sensors and the outlook for the technology within the wider quantum sensor market – forecast to reach US$7.1 billion by 2044.

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