I was on Instagram and saw this dude staying in a hole in a frozen lake for 30 minutes, and nothing really happened to him, but people in the comment section were telling him that he could've gotten hypothermia. I find it very fascinating how the human body can adapt to these situations, thinking if it was me, i would've froze to death...

The body tries to survive but instead it kills itself, i don't understand ! How much does take on average to these Stages until the body shuts down tho ?