🔍 Key Concepts

• Heat loss in cold water and how the body loses heat by movement vs staying still • Effect of movement and blood circulation on core body temperature in cold environments • Purpose of survival positions in cold water (e.g., HELP position, huddling)

💭 Think About

• Think about what happens to warm water trapped in your clothing layers if you move around a lot in cold water • Consider whether swimming hard in cold water makes you feel warmer overall, or just tired more quickly • Ask yourself: do cold-water survival techniques recommend vigorous movement or minimizing motion?

✅ Before You Answer

• Check which options would realistically speed up or slow down heat loss from the body in cold water • Verify which choices match standard cold-water survival advice (USCG/sea survival training) • Eliminate any choice that assumes cold water around you can be warmed significantly just by your own movement