Soon after actor Anthony Edwards put out his last cigarette, he decided to run the Chicago marathon.
Like most marathoners, Edwards questioned his ability. But unlike most other runners, he knew that if he could not finish, everybody would know it.
"It was right at the height of 'ER,' so I went under a different name," he said. "I was so worried I wasn't going to make it. It would be like 'Anthony Edwards fails.' "
But Edwards did finish that 1999 race in 4 hours, 13 minutes, 7 seconds, and he went on to run five more, for a total of three in Chicago and three in New York.
Like many celebrities lured to the grueling test of personal endurance,...