汗液成分（Sweat components）.docVIP

汗液成分（Sweat components） sweat -------------------------------------------------------------------------------- Men choose sweat, women choose tears argument seems biased, but there is not a bit of truth. Men chose to sweat, because he cant be the schools in addition to sweat. Blood is precious, tears are cheap. A mans sweaty place seems to be everywhere, but the room for perspiration is really small. Outdoor exposure, air pollution, it is better to feel the sweat at the gym. Whats in a cup of sweat? The composition of 98 ~ 99% is mainly water, the specific gravity is between 1.002 and 1.003, and the value of pH is between 4.2 and 7.5. NaCl is approximately 300 mg /100 ml.. 1 to 2% is a small amount of urea, lactic acid, fatty acid and so on. Sweat (sweat) is a liquid secreted by sweat glands. Sweating induced by spurs due to increased external temperature or increased thermogenesis in the body is called sweating. The transpiration regional wide distribution, various parts of the body skin, especially in the forehead, neck, torso, waist and back of the hand and forearm, and other parts of the most; followed by the neck, side torso and limbs and armpit side again for the majority; stocks; at least the palm of the hand and foot. Mental stress also causes sweating. The sweat center is distributed in all parts of the central nervous system, and normal people do not know the evaporation of about 600~700 milliliters of water within 24 hours. Sweat, friend! Sweating can be divided into two kinds: active and passive. The so-called passive sweating, refers to the weather due to heat, irritability and sweating, this way of sweating is detrimental to the human body. Contrary， The sweat that comes from the active movement of the body is called active sweating. It helps to keep the temperature of the body and emit heat. It is good for peoples health. The effect of perspiration is to regulate body temperature. In fact, the human body is like a delicate machine. If you dont sweat, t