r/TheMostHatedMarketer•7 mo. agoJamieHBrownProfessor Bart Kay: The 80 / 20 "rule" for Running Training... Good Idea or Not?https://odysee.com/@Bart-Kay-Nutrition-Science-Watchdog:7/the-80-20-rule-for-running-training...:7Posted Feb 21, 2026, 5:33 PM UTC10ShareSave