Tap into the power of music.

I thought this was a very interesting article about the power of music. You can read more of it by clicking the link at the source listing below.

More than 7,000 runners who recently raced in a half-marathon in London were under the influence of a powerful performance-enhancing stimulant -- pop music.
The music at London's "Run to the Beat" race was selected on the basis of the research and consultation of sport psychologist Costas Karageorghis. He has learned how to devise soundtracks that are just as powerful, if not more so, as some of the less legal substances that athletes commonly take to excel.
The link between music and athletic performance is just one example of the inroads scientists and doctors are making into understanding the amazing power that music has over your mind and body. Science has shown that music really can kill pain, reduce stress, better your brain and basically change how you experience life.

Sources:
Live Science October 15, 2008