It’s called Body Area Network (BAN) and there are also standards like your router https://en.m.wikipedia.org/wiki/Body_area_network https://en.m.wikipedia.org/w

It’s called Body Area Network (BAN) and there are also standards like your router https://en.m.wikipedia.org/wiki/Body_area_network https://en.m.wikipedia.org/wiki/Body_area_network There are beds in hospitals that connect to the patients vitals, already.