#241--The music played at most gyms is annoying. Even worse, it may be adversely affecting the quality of your workout. Dr. John Diamond discovered that some music caused a "loss of symmetry between the left and right cerebral hemispheres, including subtle perceptual difficulties and a host of other early manifestations of stress." Lots of other studies support his conclusions. Generally, they find that classical music from the Baroque period actually facilitates learning, jazz has a neutral effect on learning, and most rock inhibits the learning process. The one exception to this last point, believe it or not, is music by the Beatles.