Recently, scientists in the United States in the United States "MSNBC" web site published articles, devoted to the study of the human body eight little-known secret.
1. The stomach secrete corrosive product. You know what? Your belly keeps a kind of any airport security personnel can confiscate the harmful liquid. Stomach cells secrete hydrochloric acid industry often used to scrub-a kind of metal corrosive chemicals. But the mucous membrane of the stomach wall to keep the "poison" in the digestive system security, and rely on it to digest the food.
2. Position affect memory. The memory will reflect on our various feeling, a perfume or voice New Era Hats may arouse a distant memory. Research points out, with the aid of the specific position (such as single leg kneel down to propose, etc), can better and faster to recall the past a period of time.
3. Bone can be "decomposition" out of calcium. Bone can help us to adjust the level of calcium in the body. Bone contains calcium and phosphorus, but the muscles and nerves need calcium. If the body short of calcium, certain hormones can make the bone "decomposition" out some calcium, so as to improve the level of calcium in the body, the standard until now.
4. A lot of food "feed" the brain. Although the brain accounts for only of the 2% of your body weight, but the brain but need to 20% of the body's oxygen and heat. We eat a lot of food is actually to the brain supply "soul food". In order to meet the brain, three main cerebral arteries to keep the root brain lose oxygen, any single artery occlusion or rupture will lead to brain cells to starve, related brain damage.
5. Thousands of eggs did not use the woman's life. Although a woman's life of mature eggs with about 350 (about every months eduction 1), but the average adolescent girls have not completely follicle development in 34000. 50 or so after the menopause, ovulation gradually reduce, did not use the follicles of be wasted.
6. Adolescence "reinventing" brain structure. Hormone changes favorable development, and to prepare for the next generation of fertility. But why adolescence will lead to unpleasant emotions? Testosterone hormone may affect the brain such as neurons, the growth of cause brain structure changes, caused many unusual behavior--the change of mood is, indifference, poor decision-making ability.
7. Head change in wisdom. Human evolution is not perfect. Otherwise baseball hats we long wings is rather than wisdom. A long time ago, is the third molar wisdom useful. With the increasing human head, jaw bone structure change, within the oral cavity teeth too crowded, wisdom is not useful.
8. Laughter is a contagious. And yawning, laughter can infect. Studies show that laughter belongs to a kind of imitation social cues. The laugh, and facial muscle activity in the brain related areas stimulated. Sneezing, laughing, crying and yawn all is to enhance social groups of the key factors in the link.
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