Q&A #71 - Double workout days: practical applications and scientific underpinnings Should you ever do two intense workouts on the same day? Metabolic stress, muscular and tissue stress, central nervous system stress, and cognitive load of double workout days How to combine endurance training and resistance training (concurrent training)  and minimise interference   LINKS AND RESOURCES: That Triathlon Show website  Coaching Training Plans World Champions keep things simple: training masterclass with Joel Filliol | EP#172 Injury prevention and rehabilitation with James Debenham, PhD | EP#209 Volume, intensity and physiological adaptations with prof. David Bishop | EP#215 Triathlon Strength Training in 2018 - The Definitive Guide   SPONSORS: Precision Hydration - One-size doesn't fit all when it comes to hydration. Take Precision Hydration's FREE sweat test and learn how you should hydrate. Use the discount code THATTRIATHLONSHOW15 to get 15% off your order OR use the code THATTRIATHLONSHOW and get your first box for free.   ROKA - The finest triathlon wetsuits, apparel, equipment, and eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Visit roka.com/tts for 20% off your order.   RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing.    CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.