Who used to drinking coffee can cheer when a cup of "black ice" or awake in the morning to deal with sleepiness when required to work nights ... but because it contains caffeine and other substances, causing coffee harmful if abused.

Pharmacological effects

Coffee and tea are two popular drink in many countries. For coffee powder, they brought seeds of coffee roasted and dehusked, today has been processed into a kind of water-soluble powder. During the roasting process, an evaporation (about 18%), in line with parchment made ​​of beans caramel brown color phesam black, and the chemical modifications made ​​coffee taste very special special, easy charm.

Stimulant effect of coffee is due to compounds that contain the basic ingredients are caffeine, at concentrations 0,7- 2%, less than the tea (tea) at the level of 2-3%. However, a cup of coffee stimulates stronger than using the 10-15g coffee powder contains 100mg of caffeine, while a little teapot has more caffeine. Caffeine stimulates the central nervous system, making sober, stimulating work, especially working with the mind, increase muscle activity and coordination activities.

Stimulating effect of caffeine alertness are widely used: in addition to tea, coffee is a popular beverage, beverage types such as carbonated soft drinks, energy drinks contain caffeine. Caffeine is also used for medicinal purposes, is a part of many medications touch, pain, enhances the analgesic effect of paracetamol, aspirin or reduce the effects of drowsiness antihistamine allergy.

Coffee is also considered to have nutritional value, with 12% lipids (fats), 12% protit (protein), 4% minerals - potassium and magnesium most. Mix with sugar and milk, nutritional value of Ca pheduoc raised.

Coffee: Drink to properly

Caffeine effects on the central nervous system and the operation of the cardiovascular system. So, in some people, drinking coffee will make the heart beat faster, headaches, hand tremors, feeling restless. So people with cardiovascular disorders should be careful, if adversely affected, do not drink anymore.

- Caffeine has a diuretic effect, if the external hard drinking night of sleep due to waking stimulus the night to urinate. So drink coffee during the day, especially in the morning drink is best. Every day a cup (about 200ml) is good, or 2-3 split equally bright afternoon.

- Caffeine stimulates increased secretion of gastric acid. So avoid drinking coffee at an empty stomach to protect the stomach lining, especially those who already weak stomach. Drinking coffee in the morning empty stomach, not eating breakfast is also harmful to health. To suit the tastes and health status of many people, the market has taken down or phelay beans decaffeinated.

- Depending on the individual, but how different coffee drinks. Some people like to drink black coffee without sugar to enjoy the bitter taste, aroma and flavor of it. Some people like to drink coffee with milk. Either way good, as long as suitable to their conditions, such as diabetes who drink coffee only phekhong alone is very good, but the energy is needed, it should drink coffee with sugar or milk.

- Caffeine can cause interactions with certain medications such as loss effects of sedative drugs. Some fluoroquinolone antibiotics (such as ofloxacin) with coffee drinking increases the stimulating effects of caffeine (causes heart palpitations, irritability, fatigue that people mistook poisoning). So, avoid coffee with drugs (medication is best to use cooled boiled water).

- Coffee drinkers attractive not only because of the effects of caffeine, but also by the taste. So it has more substance, flavoring in coffee processing to produce a bitter taste, aroma and flavor of coffee for ease of sale. If someone is drinking coffee then get drunk, red people, they may have an allergy to caffeine or another substance in coffee. Best to convert other types of coffee, there was always drinking so they should not drink coffee anymore.

- For your students, do not abuse coffee (including black tea) for the night school competition. Do not learning organization, proper rest should be some close to date young novice cornered contest, and thanks to the compressed learn so bold coffee to sober "rice" paper. It should be noted, fatigue and sleepiness is a sign that your body needs to rest. Use coffee to open eyes is only awarded fraudulently mislead, in fact the body is tired. Drink coffee to wake long night is very harmful for health, especially for brain damage.

Coffee addictive as drugs?

Addictive means "being dependent on certain substances, can not give that to continue to use, if not used, irritated or disturbed in the body". Here to distinguish substance dependence creates two types: physical dependence and psychological dependence.

Caffeine is a substance, but of light, ie the only cause psychological dependence. The gauge was addicted to coffee without coffee would feel uncomfortable, lethargic, myself, even tired. This kind of psychological dependence is not harmful as drug addiction, because addiction cause psychological dependence and physical. Lack of drug addicts will be severe physical disorders causing bout struggling very hard to tolerate. And coffee addict, if determination can still be removed.

G8Coffee Collected sources.