The Spark of Life: Electricity in the Human Body

A lively exploration of the surprising role that electricity plays in our bodies.

What happens during a heart attack? Can someone really die of fright? What is death, anyway? How does electroshock treatment affect the brain? What is consciousness? The answers to these questions lie in the electrical signals constantly traveling through our bodies, driving our thoughts, our movements, and even the beating of our hearts.

The history of how scientists discovered the role of electricity in the hu...