Lightning usually follows the discharge path of least resistance, which usually is the highest point in the area. The most noted effects of lightning strikes on people is skin or internal organs burns. The heartbeat rhythm can be interrupted by the electricity flowing through the body. Clothes can be ripped off the person, and shoes can literally be blown off the feet. Thunderstorms always contain lightning, and precautions should be taken near thunderstorms.
Lightning kills more people each year than tornadoes do.
Argonne National Laboratory, Division of Educational Programs, Harold Myron, Ph.D., Division Director.