The 'Star Trek' skin scanner that knows if you're sick

Researchers in Berlin have developed a hand-held scanner that can measure patients' general health just by scanning their skin. Is the future here already?

This small optical scanner can rate your overall health by detecting antioxidant levels in the body.
(Image credit: Opsolution NanoPhotonics GmbH)

We haven't mastered teleportation yet, but scientists have brought at least one gadget from Star Trek to life... sort of. German doctors have developed a small optical scanner that can measure your overall health by briefly touching your skin — think the "tricorder" on the Starship Enterprise. The device is already being tested on 19-year-old German students. So how does it work? And when can we get our hands on one?

How does it measure wellness?

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