In Season 2 Episode 18, Dr. Bubbs “rewinds” the tape and revisits key insights and expert tips from the past two seasons. In part 1 of this episode, guests Dr. Shawn Arent, Dr. Eric Helms and Isabel Lahela talk body composition measurement techniques, the nuances of carbs for hypertrophy and weight loss, and the interference effect of HIIT training on bodybuilders. In part 2, Dr. Brianna Stubbs, Dr. Susan Kleiner and Dr. Jose Antonio will discuss supplements for sport, such as exogenous ketones, carbs, beetroot juice and HMB. In part 3, Dr. Stavros Kavouras and Prof Tim Noakes will outline different hydration strategies for athletes and the general population. And finally, in part 4 Dr. Fergus Connolly, Dr. Jeremy Koenig and Olympian Heather Moyse will talk emotions and mindset in sport, the “warrior gene” and how to overcome your own fears, assumptions and roadblocks.