Human beings aren't great conductors of electricity. But if you set an electrical test meter to measure resistance you can get a reading, which you don't on air or insulation. So they do conduct, just not as well as metal or graphite.Those machines that measure your body fat as well as your weight do it by passing a tiny electric current through you and measuring how well you conduct it.Our bodies use electricity to work- nerves conduct tiny electric impulses to and from the brain in order that our brain knows what is going on and can control what is going on. In a way the complicated wiring looms in cars, washing machines and robots are just simple version of our own bodies!
