Caffeine is a xanthine alkaloid compound and a stimulant of central nervous system, which can temporarily dispel drowsiness and restore energy. It is used to treat neurasthenia and coma and resuscitation in clinic.
Coffee, tea, soft drinks and energy drinks containing caffeine are very popular, so caffeine is also the most widely used psychotropic drug in the world.
The main source of caffeine in the world is coffee bean (the seed of coffee tree), and coffee bean is also the raw material of coffee. The caffeine content in coffee depends largely on the variety of coffee beans and the method of making coffee, and even the caffeine content in coffee beans on the same tree is quite different.
Extended data:
Other functions of coffee—
1, diuresis and dehumidification: Caffeine can promote renal function, expel excess sodium ions from the body, increase urination, improve bloating and edema, and help to lose weight. Black coffee is more diuretic.
Appetizer: Caffeine can stimulate sympathetic nerve, stimulate gastrointestinal secretion of gastric acid, promote digestion, prevent bloating and gastroptosis, and promote gastrointestinal hormones and peristalsis hormones, so that defecation is rapid.
3. Eliminate fatigue: Caffeine is a mild stimulant, which can improve the sensitivity and attention of human body, accelerate the metabolism of human body, improve the mental state and physical quality of human body, and thus eliminate fatigue.
References:
Baidu encyclopedia-coffee
References:
Baidu encyclopedia-caffeine