Bungee jumping involves jumping from a tall structure while attached to an elastic cord. The thrill comes from both the free falling and bouncing back up. When the person jumps, the cord stretches to absorb the force of the fall before snapping back to bounce the jumper up and down until losing momentum. Despite risks, millions of successful jumps have occurred since 1980 due to safety regulations. However, injuries still sometimes happen if the cord is too long or equipment fails.