Caffeine is a substance that exists naturally in certain plants or is produced synthetically and used as an additive in certain foodstuffs. It is also diuretic and stimulant of the central nervous system.
Caffeine is a bitter substance found in several compestos coffee, tea in soft drinks, chocolate, cola nut, and certain medications. It has many effects on the metabolism of the body, including the stimulation of the central nervous system. It can do feel more alert and increase its power when it is consumed.
For the majority of the people, the amount of caffeine, between two and four cups of coffee a day, is not harmful. However, too much caffeine can leave you restless, anxious and irritable. You can also prevent him from sleep and cause him pain in head, abnormal heart rhythms or other problems. If he disrupts the use of caffeine he may have withdrawal symptoms.
Some people are more sensitive to the effects of caffeine than others. These people should limit consumption.. Women who are pregnant must also do or who are nursing. Some drugs and supplements can interact with caffeine. If you want to know if caffeine is healthy for you, talk to your doctor if notice some unwanted side effect.
Functions:
Caffeine It is absorbed and distributed very quickly. After absorption, happens to the brain where to activate our central nervous system.
The consumption of caffeine does not accumulate in the bloodstream, nor the body stores, but which is excreted in the urine, many hours later of consumed.
Caffeine does not diminish the effects of the consumption of alcohol, although many people still believe that a cup of coffee returns sobriety to an intoxicated person is not the case the rate of alcohol in blood will remain high.
Caffeine it can be used in some cases such as treatment of migraine headaches and to ease, for a short time, fatigue or drowsiness.
caffeine has a few benefits in the use of the lost weight helps the metabollismo to increase spending calorico besides being a powerful energizing at the same time helping to transform fat into energy during the practice of sportIt is a natural diuretic aid to the retention of liquids by removing the excess liquid.
Another benefit of the combined intake of caffeine and glucose can benefit the extension of the care, learning and verbal memory. It is the conclusion of a study conducted by the University of Barcelona involving 72 subjects aged between 18 and 25 years. The researchers analyzed the effects of the intake, first thing in the morning and in fasting, different drinks: water (150 millilitres), water with 75 milligrams of caffeine, with 75 grams of glucose and water to 75 milligrams of caffeine and 75 grams of glucose.
The results put showed that taking joint of two substances, caffeine, and glucose, has beneficial effects on attention and learning of persons, as well as memory, something that should take into account students. Likewise, they also showed that when these substances are supplied individually, the obtained beneficial effects were much smaller. The details were published in the journal Human Psychopharmacology: Clinical and Experimental.
Excessive caffeine intake can lead to rapid heart rate, excessive sudoracion, nausea, vomiting, restlessness, anxiety, depression, tremors and difficulty sleeping.
The effect of caffeine on health has been widely studied. In particular, discussed carefully the effects of caffeine in disease fibrocystic breast, cardiovascular disease, birth defects, reproductive health and behaviour of children. The Council of the American Medical Association on scientific (American Medical Association Council on Scientific Affairs) said that drinking coffee or tea with restraint probably does not have negative effects on the health of one, as long as the person leading an otherwise healthy lifestyle. However, the organization emphasizes moderate caffeine use.
Leave the caffeine abruptly can cause headaches in head, drowsiness, irritability, nausea, vomiting and other symptoms. Gradually reduced his consumption to prevent any symptoms of withdrawal.
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