According to the study discussed in the video, 1 minute of vigorous-intensity exercise is equivalent to 4 minutes of moderate-intensity exercise in terms of reducing all-cause mortality. This means you get a significantly greater benefit from a shorter duration of vigorous activity compared to moderate activity.
This video discusses a recent study that analyzed BioBank data to understand the correlation between exercise intensity (low, moderate, vigorous) and mortality outcomes. Dr. Rhonda Patrick explains that while moderate-intensity exercise has benefits, vigorous-intensity exercise provides a significantly greater "bang for your buck" in terms of reducing all-cause mortality, cardiovascular disease mortality, and type 2 diabetes risk. The video also touches on the benefits of moderate-intensity exercise for building aerobic base and improving cardiorespiratory fitness, but ultimately concludes that vigorous exercise is superior for longevity and various health markers.
The primary benefits of moderate-intensity exercise, like Zone 2 training, include building an aerobic base and improving cardiorespiratory fitness. It's still recommended because it can be beneficial for consistency, as some people may find it easier to stick to a routine with moderate exercise. Additionally, it can be helpful for recovery and is preferred by some individuals who may experience burnout from too much vigorous activity.