HYPOTHERMIA IN WATER In the water, the body loses heat at least 25 times faster than it does in the air. Hypothermia can best be described as a decrease in the body's core (head and body) temperature to a level that normal body functions are impaired. What this means is your body, while in the water, loses more heat than it can replace. Your body begins to shut down regions that are less important to its survival. Your hands and feet become cold as the blood flow to them is slowed in an effort to keep your body warm. As a result, you are less coordinated and become less active. With the aid of a life jacket, “H.E.L.P.” (Heat Escape Lessening Posture) can extend cold water survival in 50 degree F water up to four hours. Your life jacket allows you to conserve energy in the water by remaining in the H.E.L.P. position. Once in the water, keep your clothes on. Even though they become saturated with water, they will help to slow your heat loss. Also, your clothes can trap some air which can aid in flotation. All the more reason to boat smart from the start, WEAR YOUR LIFE JACKET!
		Click above and put your math skills to work and learn about the body's temperature loss while IN THE WATER.
			Since hypothermia effects your body's core temperature, your survival time while in the water depends on the water's temperature. The chart at right shows your estimated survival time based on water temperature: