I think people can handle 150 to 200 miles a week. But something has to give somewhere. If he's a student, how's he going to study? He may be at the age of chasing and courtship, and that's an important form of sport and recreation, too.
Bill BowermanThe idea that the harder you work, the better you're going to be is just garbage. The greatest improvement is made by the man or woman who works most intelligently.
Bill Bowerman