I'm trying to research bioelectricity, Basically, the electricity inside you and me that controls neural impulses and our brains. There's a couple things I want to focus on: 1. The "Aura" of electricity that surrounds all living things and that can apparently be detected by sharks. 2. Methods of measuring bioelectricity 3. Devices that could potentially work with such ambient electricity. Maybe Tesla was on to something when he tried to give us all free energy? Physics was always my worst subject, and every source I find so far is either new age mumbo jumbo or an extremely complicated medical journal with charts I can't understand. Can someone help me break this all down please?