Can one little pill save your life? Google is betting on it, or at least willing to sink a lot of money chasing the idea as Andrew Conrad, head of the Life Sciences team at the Google X research lab, revealed recently at The Wall Street Journal’s WSJD Live conference.

Briefly, the project is this: Google is creating a nanoparticle-covered pill that would work in tandem with a wearable magnetic device to detect cancer and heart disease—and presumably down the road, other issues—in the patient. In layperson’s terms, the device would guide the pill to different parts of the body, whereupon it would detect, say, arterial plaque or cancer-related biomarkers.

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