WS of woman jogging through woods. Animated sequence: A Greek woman is struck by an arrow from Cupid’s bow. A Greek woman running past ruins. The woman is followed by animated electric fan that flies behind her. Greek man with light bulb lighting up above his head. A Greek man lectures to a group of students in front of building, holding a skull, while light bulbs light up above each student’s head. Drawing of scientist looking into a microscope. Drawing of a spinal cord connected to the brain. Anatomic drawing demonstrates the transfer of information from the brain to the nerves throughout the body. Animated sequence: A lightning storm. A scientist conducts experiments in his laboratory. A pair of disembodied frog legs twitch. Drawing of the brain shows firing of synapses. Photograph of scientist looking into microscope. Brain matter at the cellular level as viewed through microscope.