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.
10, 11, 12. Vitamin D helps the body absorb calcium, which is important for healthy teeth and bones. It also helps maintain proper blood levels of calcium and phosphorus. 10, 11, 12. Vitamin E is an antioxidant that plays a role in the formation of red blood cells.10, 11, 12. Vitamin K is required for normal coagulation of the blood. Some studies suggest that it helps maintain bone health in the elderly.itamins are either water-soluble (such as vitamin C and the B vitamins) or fat-soluble (A, D, E, and K). Water-soluble vitamins are absorbed by the intestine and carried by our blood to specific body tissues where they are needed.