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the overall volume of the circulatory system so increasing the blood pressure. The body's response to this is to reduce the fluid volume by getting rid of water in the urine.
Exercise or physical activities in cold with clothing removed are an excellent means of hardening the skin and promoting good digestion. Undressed in the cold one feels more healthy and vigorous. Experience tells it has a positive impact on immune system and increases tolerance. It is common belief by facing the cold one can raise will-power and consolidate memory. People spend the winter trying to stay warm and avoid getting cold, but a little bit of exposure may not be such a bad thing. Cold is believed to do health wonders, and there is some science suggesting that it might be so. It has been suggested, for example, that moderately cold temperatures could be good for the vasculature because it trains blood vessels in the skin to be responsive.
Cold weather may also help slim down, by stimulating metabolically active brown fat (muscles and cells that are of less-use). When the body is exposed to cold temperatures the adrenaline or thyroid hormones activate brown fat stored in the body to torch calories while keeping the body warm, and may play a role in regulating body weight, without any side effects. People living in colder climates must take advantage of the warmer months to secure an ample supply of sun-made reserves to carry them through sunless periods. This is not to say that the body stores up sunshine, but rather it stores up substances produced with the aid of sunshine to be used in times of stringency. Along with vitamin D, other materials are synthesized in the body
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