“…I found a report on three young women in the United Kingdom who went to the same general practitioner (GP) for major ER, and that savvy GP, who had never seen such a cluster of ER in such a brief time frame, informed local public health officials, suspecting an ongoing public health risk. Sure enough, all three young women, although active individuals enjoying recreational sports, had done novel gym workouts, way beyond their ability, involving repetitive, explosive movements with many repetitions — in the same gym , led by two very intense physical trainers who promised to change their ways (6).…”