Not everyone is equal in front of coffee

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Caffeine is the most consumed central nervous system stimulant in the world. In France, the average person consumes 5.4 kilograms of coffee beans per year, compared with 12 kilograms in Finland. Many people are immersed in the joy brought by the fragrance of this brown-black liquid, but can we think of coffee as an addictive "drug"?

"of course not. Because even if coffee is a psychotropic drug, the pleasure it brings to the brain cannot be compared with the sense of dependence caused by heroin, cocaine and even nicotine. " Said Dr. Astrid Nerrig, research director of the National Institute of Health and Medicine at Necker Hospital in Paris. In her book Coffee and Health, she elaborated on the multiple benefits of coffee.

However, everyone's tolerance for caffeine intake varies. Dr Christopher Bernard, of the Marseilles Neuroscience system, explained: "caffeine is degraded by a special enzyme in the human body, which has some genetic variables, and everyone degrades caffeine in a different way; in addition, different people have different ability to absorb caffeine. This is why coffee has different effects on everyone. The beneficial or harmful effects of coffee on health depend entirely on the individual and the amount of coffee consumed by that individual. "

In addition to metabolic differences among different consumers, coffee itself has different effects due to different types of coffee, such as decaffeinated coffee, which removes caffeine before roasting and retains only the aroma of the coffee. However, there are traces of caffeine in decaffeinated coffee: about 0.1% caffeine, while instant decaffeinated coffee contains 0.3% caffeine.

"different ways of making coffee also have a certain impact on the effect of coffee. When coffee powder comes into contact with water for a long time, oils thought to be cholesterol hotbeds precipitate, as is the case with Turkish coffee or other coffee made from piston coffee pots. The longer the coffee is roasted, the less antioxidants it contains. " Dr. Nerrig said.

"if you get into the habit of drinking coffee regularly, such as drinking a cup of coffee after getting up every morning, your brain will be more awake, your mind will be more focused, your ability to work will be improved, and your sense of humor will be enhanced. However, people who are sensitive to caffeine can also feel overexcited or have sleep problems as a result. With the increase in the number of times of drinking coffee, when the habit of drinking coffee is slowly formed, the feeling of excitement tends to diminish. Moreover, for some patients with heart disease, caffeine can help the heart beat. Since we cannot predict everyone's tolerance to caffeine, we can only make judgments based on our own physical condition. " Dr. Nerrig said.

The long-term effect of caffeine on the brain has attracted special attention in the medical community. "caffeine may delay age-related cognitive decline, especially in women over the age of 80," Dr. Nerrig said. Caffeine may also combat Parkinson's disease (except for patients treated with hormone substitutes) and reduce the risk of Alzheimer's disease. it may even alleviate multiple sclerosis and Huntington's chorea, a rare neurodegenerative disorder that results from motor and cognitive impairment. " Long-term consumption of coffee, which contains thousands of different molecules, may reduce tinnitus and reduce the risk of non-insulin-dependent diabetes, perhaps because it contains antioxidants such as chlorogenic acid. This applies to everyone, regardless of gender, race or body mass index.

"our research on diabetes is not enough to conclude whether the reduced risk of NIDDM is due to coffee drinking habits, or whether these regular coffee drinkers also have exercise habits." "however, according to the latest analysis by the International Agency for Research on Cancer (IARC), which belongs to the World Health Organization, coffee has preventive effects on certain cancers, such as liver cancer, endometrial cancer, breast cancer, prostate cancer and pancreatic cancer," Dr. Nerrig said.