In this masterclass Chloë Lanthier will explore the physiology of heat exposure and thermoregulation; how the body responds to long duration exercise in extreme heat (30°C+) and high level of humidity. From heart rate, sweat rate, muscular output, hydration, fueling, perceived effort, heatstroke, gastrointestinal issues… and the mental (brain) factor! Acclimitization vs adaptation. Leave with invaluable strategies to optimize your preparation to train and compete in very hot and humid environments. Chloë will share her in-depth scientific knowledge and experience racing long distances in extreme heat, including the Sahara.