TRX founder Randy Hetrick on the accidental invention of the suspension trainer, Stanford, losing and buying back TRX, and why all success is built on failure. Episode 223.

World's Strongest Man Mitchell Hooper on progressive overload, the bodybuilding show he still can't beat, his team, fatherhood and Lift Heavy, Be Kind. Episodes 165 and 218.

Nova Scotia's Sarah Mitton, Commonwealth Games and Universiade shot put champion and Tokyo Olympian, on breaking the mold, setbacks and training. Episode 169.