Breaking Psychological Barriers - By Richard Kimball

Before 1954, running a sub four-minute mile was considered to be impossible according to physiologists at that time. It was thought that a four-minute mile was the physical limit of the human body.When Englands' Roger Bannister ran a 3:59.4 to break the world record, he not only broke a physical barrier but he also broke a psychological barrier as well.Australian John Landy, who was considered to