Cancer survivor Nancy Shepherd (left) and her caregiver Brenda Truesdell hug at the end of the Survivor's Lap Saturday during the annual American Cancer Society Relay for Life at Kingman High School. Thirty-nine teams and around 550 participants walked all night around the school's track to raise money for cancer research. More than $50,000 was raised for the event. Hualapai Mountain Medical Center held a Survivor's Dinner just before the event. Relay for Life began in 1985 when a colorectal surgeon in Tacoma, Wash., ran and walked around a track for 24 hours to raise money for the American Cancer Society. The events are held overnight because "cancer never sleeps."