Ready for the ultimate test?

Denali demands everything. Heavy sleds. Long glacier travel. Brutal Alaskan weather. Twenty days of authentic expedition living on North America’s tallest peak.

Progression isn’t luck, it’s preparation. If you’ve built your foundation on climbs like Baker or Kilimanjaro, Denali is where you prove it. If Everest is in your sights, this is the proving ground.

Join the CTSS team for a FREE live webinar on how to train, prep, and climb The Great One.

Click the button below to register. Your next step starts here.

A strong immune system is the unsung hero of summit success.  Even the strongest climbers can be brought down by something as small as a cold. Stress, travel, sleep disruption, and high-altitude exposure all take a toll on the body’s defenses. Staying Healthy on the Hill dives into how small, intentional habits can protect your health, improve performance, and keep you climbing strong—no matter the altitude. Infectious disease experts Dr. Paul Pottinger and Dr. Chris Sanford, co-hosts of the Germ and Worm Podcast, unpack how to build real immune resilience before, during, and after your climb. You’ll learn how nutrition, rest, and recovery strategies protect performance when the stakes are high, because getting sick could cost you your summit.

What You’ll Learn:

• How stress, sleep loss, & altitude impact immunity, & what to do about it
• Nutrition & supplementation strategies to use on expedition
• Travel hygiene & infection prevention tips from infectious disease experts
• How to manage recovery and rest days to keep your body strong
• Practical, science-backed steps to perform your best