What happens at Stage 2 of cold water immersion?

At Stage 2 of cold water immersion, the body begins to adapt to the cold exposure. This stage is characterized by a decrease in shivering as the body's thermoregulation mechanisms start to kick in. Blood vessels constrict to conserve heat, and the body may begin to release stress hormones, such as adrenaline, in response to the cold stimulus. Overall, the body is working to maintain its core temperature while still experiencing the challenges of the cold environment.