Tip 1: How harmful is caffeine

Medicine

Tip 1: How harmful is caffeine

Fans of fragrant and invigorating coffee constantlyhear statements about the harmfulness of caffeine, which significantly poisons them with the joy of a favorite drink. However, the opinions of experts in this issue are radically divided - some consider caffeine useful, while others claim about its negative effect on the whole organism.

Instructions

Caffeine can harm a person not only inThe case of its excessive use or in the presence of certain diseases that do not imply its entry into the body. Most often, its side effects look like an overdose, which is characterized by increased irritability, nervousness, tremor of hands and headache. Some people who are contraindicated in caffeine, use decaffeinated coffee - this drink is really harmful to humans.

Experts argue that bezofeyinovy coffeeforms a bad cholesterol in the human body, as a result of which the cardiovascular system and the gastrointestinal tract suffer in the first place. Conducting research with a group of volunteers who consumed decaffeinated coffee showed that these people had 18% more free fatty acids. As for the caffeine itself - a known fact is dependence on it, as well as the appearance of various nervous disorders and a constant sense of anxiety. It is strictly forbidden to give coffee to children, because caffeine disrupts their development and growth.

Caffeine increases the pulse and strengthens the heartActivity, so six cups of coffee a day is the right way to get heart problems. Also, it has a strong diuretic and dehydrating effect, so it is not recommended to drink it to people suffering from diseases of the genitourinary system or kidneys. Soluble coffee increases acidity in the stomach - especially if you drink it on an empty stomach, so to avoid the occurrence of gastritis, ulcers or heartburn should drink a caffeinated drink an hour after eating.

It is not recommended to get involved in caffeine and pregnant womenWomen - four cups of coffee a day increase the risk of miscarriage by 33%. The greatest harm in this case, he strikes at the time of pregnancy, starting with the twentieth week. Also, coffee can be washed out of the body, increases the risk of osteoporosis, and if you refuse it, a person begins to experience drowsiness, fatigue and even depression. Therefore, caffeine should be discarded gradually, gradually reducing the usual daily dose.

Tip 2: Danger of natural coffee

Coffee is one of the drinks that is drunk and veryLove the majority. Someone can drink one cup a day, someone a few, and sometimes people even become dependent on him. As far as this drink is harmful, but, on the contrary, it can be useful - often people ask such a question, continuing to enjoy coffee.

Who can drink coffee, when and in what quantities? In general, it is possible that it has no harmful properties. Doctors, of course, do not recommend drinking coffee to many, especially those who have a sick heart or are diagnosed with atherosclerosis. It is undesirable to drink an invigorating drink if there are problems with the kidneys or if you suffer from insomnia. Also, you do not need to drink this drink to the elderly.

Recommendations on the use of coffee

When is it preferable to drink coffee? It can be eaten in the morning, but in no case on an empty stomach. Well, if you drink a cup in the evening, you become anxious to sleep or there will be insomnia in general. There are, of course, also such people, whom coffee, on the contrary, helps to fall asleep. If you drink a couple of mugs during the day, then natural coffee helps a person relax. But in any case you can not drink coffee in large quantities.

How coffee works on pressure

If a person has high blood pressure, coffeecategorically forbidden, only if you really want - you can drink a small cup. Many people with low blood pressure drink this drink, because they think that it can rise because of this. This, of course, to some extent so, but not for long. People who drink coffee all the time, this effect will disappear.

Does natural coffee help to think correctly?

It is believed that coffee increases endurance,Relieves fatigue and increases mental activity, because coffee contains caffeine, which stimulates the brain. However, if you drink this drink on an empty stomach, then the brain, on the contrary, "turns off".

Can Coffee Promote Healthy Eating?

In this issue, opinions diverge. So, caffeine acts not only on the heart, but also on individual organs, their blood circulation. There are reports that coffee prevents diseases associated with the formation of stones. Scientists have a hypothesis that guaranin interferes with the crystallization of cholesterol, which is found in the composition of stones, or increases the rate of fission of fats. And that is not all. Coffee softens attacks of allergy and asthma, protects teeth from caries, helps to work better intestines (like a laxative). There have been many studies of the effect of coffee on the body. So, in India, we had an experience that confirmed that if a person drinks at least a couple cups a day, this will help save the body from radiation.

Tip 3: Is tea harmful?

The tradition of tea drinking so firmly entered the everydaylife that some people no longer represent their day without a cup of this tonic drink. There are also opponents of this habit, who tirelessly remind tea lovers of what harmful substances it contains and how it affects the body as a whole and the nervous system in particular. So who is right? Does the tea have warmth and a sense of comfort or serious health problems?

Tea is a strong antioxidant, because itsthe basis is tannins. Interacting with metals, proteins and other elements that get into the blood from the outside, they successfully neutralize the potential danger. Unfortunately, this also applies to medicines: the tannins contained in tea "disarm" and them. Have you ever noticed that hot tea burns the oral cavity much less than hot water? This is due to pectins, another kind of active substances that make up the tea bouquet. Pectin instantly envelops the mucous membranes, thus protecting them from possible damage, but still it's not worth it to tea on an empty stomach. And what about the notorious caffeine that opponents of a popular drink refer to? Indeed, there is more tea in it than in coffee. But it is bound by the already mentioned tannins, and therefore does not have a critical effect on the nervous system and is quickly excreted along with the slag. British scientists have calculated that of the 5 kg of teas (the average annual consumption per person), only 100 grams of caffeine falls into the blood, the rest falls into hot water. IT goes that the daily dose of this substance, obtained by the body together with tea, does not exceed a third of a gram, which is completely harmless. But avoid old and overheated tea leaves, it contains guanine, which is really very toxic. It is not recommended to drink tea after alcohol to avoid the increased stress on the liver. Among other treasures that conceals a cup of tea, there are also key chemical elements such as phosphorus, fluorine, zinc. A few cups of tea a day will replenish the supply of manganese and copper, and in fact a sufficient amount of the latter in the body helps to prevent inflammation. Talking about tea, it is impossible not to mention the vitamins. Vitamins B and P, which are abundant in tea, will take care of your nerves, liver and blood vessels. If the leaflets have just been torn from the tea bush, they are four times richer in vitamin C than the lemon. When processing black varieties, it partially disintegrates, but green teas retain almost their entire initial stock. So, if there are no special medical contraindications, moderate consumption of tea will not harm you, and even will be useful. To protect yourself from its "overdose" with negative consequences, just make sure that the tea leaves in your kettle are always fresh and not too strong, and the temperature of the drink in the cup is not too high.

Tip 4: Is there caffeine in tea?

Caffeine is found not only in the fruits of coffeeTrees, but also in tea leaves. However, the dose of an invigorating substance is different. It is the poet that tea has a tonic effect, and coffee, on top of everything, is also invigorating.

If you compare the amount of caffeine, you canAccuracy, say that it is much less in tea. The dose of an invigorating substance also depends on the type of tea leaves. When brewing in the drink does not come all the caffeine, because plays a role and the temperature of the water. As doctors say, a person is not recommended to consume more than 100-200 mg of caffeine at a time and not more than 1000 mg per day. Otherwise, there may be problems with the cardiovascular system. Calculate the amount of caffeine consumed is not difficult, but notice that the figure will not turn out to be exact. For example, black tea contains 40 mg of caffeine per 100 ml of beverage, in green - 20 mg per 100 ml, in red - 30 mg per 100 ml, and in tea with an interesting name Oolong - 25 mg of an invigorating substance per 100 ml of boiling water. Of course, it is simply unrealistic to drink a quantity of a drink that will exceed all the permissible standards for caffeine content. For comparison, it can be noted that the brewed coffee contains 60 mg of caffeine per 100 ml, and in soluble slightly less - 45 mg. Pregnant and lactating women, as well as individuals who periodically have high blood pressure, white tea is optimal. It contains a minimum dose of caffeine, which is only 5 mg per 100 ml of the beverage. This kind of tea has a wonderful taste and unforgettable aroma. People who are not recommended to drink beverages containing caffeine will use herbal or fruit tea - they do not contain a gram of tonic. But they also perfectly quench thirst and charge with energy, like black or green tea. This is connected with the presence of vitamins. Consult a therapist if you doubt whether you can drink tea. After the examination, the specialist will give the exact answer. Well, you will only have to adhere to the general recommendations.