Chemical sensor that will track health through breath

    A chemical sensor able to track chemical markers in breath could one day allow users to track their health and fitness levels by exhaling onto their smartphone.
    The sensor will analyze metabolites in the breath to track changes, such as cancer or diabetes, in real time. The technology will be meant to be embedded in a smartphone case or as a handheld option.
    I also believe the sensor technology could be adapted for use in a wide range of medical devices.