BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
How does coffee affect people? Detailed answer Directory / Big encyclopedia. Questions for quiz and self-education Did you know? How does coffee affect people? When coffee first appeared in Europe in the second half of the XNUMXth century, it had many opponents. Many pundits have argued that coffee is a powerful poison and should be banned. Others, on the contrary, argued that drinking coffee is good. This view contributed to the emergence of many "coffee houses". As experiments on animals have shown, coffee can indeed act as a poison, but only when consumed in large doses. Coffee can also have a negative effect on young children. But for adults who drink coffee in moderation, coffee is not a poison, and this is known for sure. A coffee bean contains 1% of a substance called "caffeine". Most people believe that caffeine is the one that produces all the effects that affect the body. This is not entirely true. There are other substances in coffee beans. Coffee has a stimulating effect on the body. The blood vessels of the brain expand, blood circulation improves, and this helps to remove the so-called "fatigue toxins" from the brain. After coffee, the pulse is better heard, which indicates the stimulation of the heart. Coffee improves muscle function. It also improves bowel function, as coffee has a slight laxative effect. The digestive system also works better. Thus, for healthy people, coffee is useful, especially after a heavy meal, although it can sometimes cause heartburn. Coffee also helps the body cleanse the blood. At different times of the day, coffee affects the body in different ways. For example, morning coffee affects the functioning of the kidneys and helps to remove toxins accumulated in the body during the night. Pre-lunch coffee acts more on the pancreas and stimulates digestion. Lunch coffee affects the muscles more and helps relieve fatigue. Evening coffee stimulates mental activity and creative imagination. Author: Likum A. Random interesting fact from the Great Encyclopedia: How do oysters make pearls? About 4000 years ago, a Chinese fisherman decided that oysters could satisfy his hunger. He opened several shells and was probably the first person to discover pearls. Pearls are made of the same substance as mother-of-pearl that covers the inside of an oyster shell. The body of the oyster is very delicate, and to protect it, it develops a mother-of-pearl coating so that the body lies on a smooth surface. When some irritant, such as a grain of sand, gets inside the shell, the oyster coats this object with mother-of-pearl layer by layer, and this object becomes a pearl. When this happens naturally, the pearl can be perfectly shaped. But man found a way to make oysters make pearls. Between the outer cover of the body of the oyster and the inner surface of the shell, a grain of sand or a tiny piece of mother-of-pearl is introduced. After two or three years, when these shells are taken out of the water and opened, a pearl is found inside. This is called imitation pearl and its shape is usually not too perfect. In Japan, they have already learned how to make perfectly shaped pearls. The irritant is injected directly into the body of the oyster, that is, a real surgical operation is performed, which requires great care and precision, because the oyster must remain alive. The largest pearl ever found was 5 centimeters long and 10 centimeters in diameter. Since natural pearls are very expensive, many people use artificial pearls. The French make very beautiful artificial pearls. To do this, they take hollow glass beads, cover them with a substance that is obtained from the shiny scales of certain types of fish, and then fill the beads with wax.
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