Data from the Copenhagen City Heart Study seem to suggest that joggers who engage in moderate-intensity (5 mph), moderate-frequency (2-3 days per week) jogging have a significantly lower overall mortality rate (30% decrease) than non-joggers. Interestingly, high-intensity, high-frequency joggers show no significant decrease in overall mortality rates vs. non-joggers. The data seems to suggest that “more” is definitely not “more” when it comes to running. Due to small sample size and limitations of the study population, more research is called for.
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