High Intensity Exercise recommended for longer life

A study in Denmark showed that the relative intensity of cycling is the most important factor in the life extension benefits of the exercise.  The higher intensity the people cycled, the more benefit they received (please keep in mind it does not mean that they cycled longer…typically when intensity is increased, the duration is decreased).

http://www.sciencedaily.com/releases/2011/08/110829070507.htm