LED implants could ease your pain
One day, eliminating pain may just be a matter of flicking on a light. Scientists have shown that you can implant LEDs that stop neurons from firing and cut out pain reception. The current technique (tested in mice) requires altering the neurons’ DNA — you couldn’t just stick them in anyone. They’re soft, however, and safe enough that you can leave them under the skin for long periods of time without limiting motion or wrecking tissue.
Source: Nature
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