OVERVIEWOverview: The sports science debate between training methodologies seems to pit Polarized training (e.g., hard days hard, easy days easy) against Tempo/Sweetspot training (e.g., high aerobic training, often derided as "the middle ground"). For real athletes, all intensities matter and how you use them depends on your available time and your goals. Here's how to figure it out.TOPICS COVEREDPolarized vs. SweetSpot definitionsSweetSpot pros and consPolarized training pros and consPractic...