One of my goals in life is acute morbidity. Another great longitudianl study from the Copenhagen Study that shows a high level of cardiorespiratory fitness in midlife can result in years of additional life. By executing your intervals you increase your V02 max and increase the likelihood that you will live better longer! No easy way!
Midlife Cardiorespiratory Fitness and the Long-Term Risk of Mortality: 46 Years of Follow-Up