The more energy you use in cold water, the more your body cools off. If you cannot climb out of the water, conserve body heat by remaining as still as possible and reducing the amount of your body exposed to the water. Protect your critical heat loss regions: the head, sides, armpits, and groin.Do not swim unless shore, a raft, or an overturned boat is nearby.hink of hypothermia as the opposite of heat stroke. Cold water dangerously accelerates the onset and progression of hypothermia since body heat can be lost 25 times faster in cold water than in cold air. Hypothermia affects the body's core the brain, heart, lungs, and other vital organs.
Vitamin A is a group of unsaturated nutritional organic compounds, that includes retinol, retinal, retinoic acid, and several provitamin A carotenoids, and beta-carotene. Vitamin A has multiple functions: it is important for growth and development, for the maintenance of the immune system and good vision.itamin A can be found in two principal forms in foods 1  : Retinol, the form of vitamin A absorbed when eating animal food sources, is a yellow, fat-soluble substance. 2  Since the pure alcohol form is unstable, the vitamin is found in tissues in a form of retinyl ester.
Vitamin E -- also called tocopherol -- is an antioxidant that cushions your body against damage by free radicals. Adults should take 15 milligrams of vitamin E per day, as it is essential for red blood cell formation.Before taking vitamin E supplements, consult a doctor, as some vitamin E supplements contain more than the recommended amount.itamin B-6 is water soluble. Your body is not able to store this vitamin, so you need a constant supply in the diet. The functions of vitamin B-6 in your body include manufacturing of antibodies, maintenance of normal nerve function, manufacturing of hemoglobin and maintenance of normal blood sugar.