Inside extreme cold, science reveals the body's last defenses.
Explore how the human body responds to hypoxia, freezing temperatures, and isolation, triggering survival mechanisms that science is only beginning to understand. Through the work and firsthand ordeal of mountain doctor Emmanuel Cauchy, this episode examines hypothermia, frostbite, and the mental limits of endurance. Sign up to see how survival at the edge reshapes what we know about the body.
- New shows weeklyFresh documentaries land every week.
- Exclusive originalsAward-winning films you can’t stream anywhere else.
- Watch anywherePhone, tablet, web and TV — pick up where you left off.
- No commitmentNo contract. Cancel in a click.
Frequently asked questions
Yes. Every plan unlocks the full library — including all Curiosity Originals like Beyond Cold — in up to 4K, ad-free, on all your devices.
Beyond Cold is a Curiosity Original, exclusive to Curiosity Stream.
Watch on the web, iOS and Android, Roku, Apple TV, Amazon Fire TV, Chromecast, Android TV, and most smart TVs. Start on one device and pick up right where you left off on another.
Curiosity Stream is our streaming service — thousands of documentaries and originals. The Smart Bundle is Curiosity Stream plus four other independent streaming services (Tastemade, Kidstream, Curiosity University, and SOMM TV) on a single subscription.



