In this episode of The Brick Session, Mark Livesey sits down with renowned sports scientist Dr. Lindsey Hunt to dive deep into one of the most critical—and often overlooked—elements of triathlon success: racing in extreme heat and humidity. Whether you’re eyeing Kona, Cozumel, or any tropical test of endurance, this conversation is packed with evidence-based insights and practical advice. Dr. Hunt breaks down the science behind heat acclimation: how long it takes, why individual responses vary, and—importantly—whether it works. From structured heat training protocols to the role of sweat rate and core temperature, this episode is filled with golden nuggets that could make or break your race day. If you’ve ever wondered how to train smart for sweltering conditions or how to adapt your approach when the mercury rises, this is one episode you won’t want to miss.

Also in this episode.  Mark Livesey tackles a tough but timely question: How do young professional triathletes make a living in today’s sport? With insights from former pro triathlete Caroline Livesey, the discussion gets straight to the point, breaking down the real economics behind going pro. Mark and Caroline explore the key income streams available to up-and-coming triathletes, including sponsorships, race winnings, appearance fees, coaching, content creation, and more.

They don’t shy away from the realities—it's a hustle, and financial success often depends on more than just performance. From navigating sponsorship deals to building a personal brand and balancing side gigs, this is an eye-opening look into the business side of professional triathlon.

Enjoy!