Biohackers are implanting LED lights under their skin

[cryptoz]

http://motherboard.vice.com/read/biohackers-are-implanting-led-lights-under-their-skin?trk_source=homepage-lede

[eveningcoffee]

Does this implant somehow interact with the body differently than a bracelet or a watch? It did not look like it does (or would).

So how could something interact with the body? I could imagine the following: vibrations, spikes, heat. What else?

I believe that brain can easily pick up frequency modulated signals.

[reimertz]

I can't help to ask why? My guess is that the bulkyness of the device is gotta have a lot of bad effects on their muscles and skeleton.

[digikata]

Why under your skin vs. say mounting it on a watch strap?