Simon Wegerif is the founder of ithlete, a company that creates sensors and apps related to heart rate variability (HRV). He discusses how triathletes and endurance athletes can use HRV to measure and manage total load - the sum of various different kinds of stress on the body, including mental and physical.   IN THIS EPISODE YOU'LL LEARN ABOUT: -What is total load, and how is it relevant for triathlon training? -What is the relation between HRV and total load? -How do we know how much we can or should train, given all the stressors in our lives outside of training? -Does stress really equal stress, no matter the source of that stress? -How can age-group triathletes practically use HRV to measure and manage total load?   SHOWNOTES: https://scientifictriathlon.com/tts162/   THAT TRIATHLON SHOW HOMEPAGE: www.thattriathlonshow.com   SPONSORS: Stac - The Stac Zero is the world's quietest bike trainer. No noise and no tire wear, since it doesn't even touch the tire! It is also very portable and affordable. Even more so when using the discount code THATTRIATHLONSHOW for 20% off when you buy your Stac bike trainer (any of the models).     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. Now shipping directly from the UK and EU. Get 20% off your entire order with the discount code THATTRIATHLONSHOW.   LINKS AND RESOURCES: ithlete website Heart Rate Variability (HRV) for triathletes with Dan Plews | EP#42 Applications and Insights in 2018 and Beyond with Marco Altini | EP#144 Non-functional overreaching with Cyril Schmit | EP#159 Periodisation Theory: Confronting an Inconvenient Truth with John Kiely | EP#148   RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing: www.scientifictriathlon.com/rate/   CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Twitter - my handle is @SciTriat.