Every movement you make—walking across a room, lifting a cup of coffee, even blinking your eyes—depends on trillions of microscopic molecular machines working in remarkable coordination. On this ID The Future, host Andrew McDiarmid begins exploring the hidden machinery of muscle with Dr. Robert Waltzer, professor of biology at Belhaven University and longtime researcher and lecturer on intelligent design. First, Dr. Waltzer takes us to right to the microscopic heart of muscle. Then he explains how muscle solves the formidable engineering challenge of repairing and replacing damaged muscle components in real time. This is Part 1 of a two-part conversation.