What is caffeine?

The chemical formula for caffeine powder is C8H10N402. Like other alkaloids, caffeine has important physical properties: it is toxic and healing. Its pharmacological effects are similar to those of nicotine, morphine, cocaine, and even quinine. Caffeine is found not only in coffee but also in tea and cocoa. It is sometimes also called theophylline, and soft drinks sometimes contain caffeine.

For mammals, caffeine is a remedy for mental illness, and for plants, it is a very good defense weapon. Caffeine is a natural insecticide. Many insects become paralyzed, even death after ingesting caffeine.

Effects of caffeine on the mind and body of people

The caffeine dissolved in coffee can be broken down quickly in the human body. Depending on your body type, caffeine lasts 20~120 minutes. Caffeine can affect the entire functional system of the human body such as the nervous system, the cardiovascular system, the respiratory tract, and the lymphatic system.

Everyone has a different response to caffeine, which is related to age, fitness, and even individual habits. Compared to adults, caffeine stays 3 times longer in pregnant women, and caffeine is metabolized rapidly in people who smoke regularly.

The refreshing effect of caffeine is an important trait that is highly valued by coffee lovers and only lasts over 20 minutes. A cup of coffee can help people withstand hardship, which is why coffee is so popular with truck drivers, journalists, architects, and students. In addition, caffeine has many functions: it can aid digestion and increase blood pressure. Like all methylxanthines (a type of alkaloid), caffeine can fight pesky orange peel skin, so it's a good skincare product for women too.

Caffeine can also make people focus and improve short and long-term memory. Several studies have shown that drinking 3 to 5 cups of coffee a day can help fight Alzheimer's disease and intellectual disability, and is particularly effective in women. Because caffeine can act on certain nerve impulses, it can also relieve some symptoms of Parkinson's disease, such as shaking hands. Additionally, a study by the American Journal of Nursing and Health estimates that drinking 3 to 5 cups of coffee a day can lower your risk of depression by 20%.

Of course, some of the side effects caused by caffeine cannot be ignored. Experiments have shown that each intake of 500-800 caffeine increases people's anxiety, makes them easy to anger, induces insomnia, and even causes symptoms of rapid heart rate and tremors. Consuming 10 grams of caffeine powder at a time (roughly the amount of caffeine in 100 cups of coffee) is fatal for an adult.

Is there caffeine addiction?

Many people wonder if people are addicted to caffeine. The answer is definitely yes. Many people have this experience: when you get used to the daily “dosage” and suddenly stop drinking it one day, you’ll become very uncomfortable, you feel drowsy, it is difficult to concentrate, and even start a headache. However, this discomfort won’t last long. After a few days, these symptoms will gradually disappear and go away.

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