Coffee has long been known for stimulating the nervous excitement under the influence of caffeine. But with the effect of coffee has less known. Such as coffee has a sedative effect. It has been proven that, if you go to sleep within 15 minutes after drinking coffee, it will sleep more deeply, because the blood circulation in the brain is better. But if they continue to procrastinate this effect fades away, and then start promoting caffeine effect, we will not sleep anymore. Sedation method has been used in many hospitals, especially for elderly patients. At the coffee people will resist deterioration breathing during sleep, causing their sleep better.

A cup of coffee in Vietnam
According to an article in a specialized journal Sleep (Vol.27, Nr.3), to take advantage of the use of coffee in stimulating the focus and excitement, you should drink coffee several times a day, every once a small sip, instead of drinking a cup loud in the morning. This is especially appropriate for those who have to work at night: they will feel more like staying up late to keep the higher concentration.

However, delicious drinks may also have some negative effects on health. It dramatically increases the amount of insulin in the blood, causing loss of balance and body negatively affects the pancreas. Especially for those with pancreatitis, the use of coffee is prohibited. Patients with diabetes should not take coffee, or if there is only used very little. Using too much coffee can also cause swelling of the mucous membrane of the stomach. The idea that drinking coffee with milk will reduce this risk is completely wrong. Caffeine will swirled with milk fat and thus cling film is in the stomach while longer.

The present study also showed that the diuretic effect of coffee is not clear. In many restaurants they often serve a glass of water with a cup of coffee, with the aim to compensate for the water seemed to be lost by the body. But actually taking a sip of water after work coffee dessert to enjoy the taste of the next sip, or of other food and drink only.

National Cancer Center in Tokyo Japan has done an experiment lasted 10 years more than 100,000 people drink coffee and discovered among them only 214 people suffer from kidney cancer. While in the non-coffee drinkers, the rate was 547 / 100,000, ie more than double. From this they concluded that the antioxidant (antioxidant) in coffee has the ability to protect kidney cells from corrosion. Experimental comparisons also showed that green tea does not have a protective effect on the like of coffee.

Previously coffee ever considered creating substance and impotence. However, in 1923, through an experiment in humans, researchers have discovered that Amantea, caffeine not only increased arousal in heterosexual relationships, but also enhance orgasm and increase the number of sperm in men.

Most recently, when one is afraid of caffeine in coffee can cause irritation, and is harmful to health should have sought to draw out substances called decaffeinated coffee (or abbreviated as DECAF).

Source wikipedia.org