40% of people rely on coffee to cheer up the basic knowledge of fine coffee.

Drinking coffee seems to have become a normal life for modern people. A recent survey conducted by Life Times and Sina Health Channel showed that more than 40 percent of the 1821 people surveyed relied on drinking coffee to refresh themselves every day.

In the survey, 29% of people chose to drink at leisure, 25.2% drank at work in the afternoon, 23.4% drank at work in the morning, and 22.4% drank coffee at breakfast. In this regard, Sun Mengli, director of the nutrition department of the first affiliated Hospital of Peking University, said that when to drink coffee, there is no fixed rule. But from a nutritional and health point of view, it is best not to drink coffee on an empty stomach. Because coffee contains caffeine, the digestive system will accelerate the absorption of caffeine when drinking on an empty stomach, resulting in discomfort such as a rapid heartbeat. Therefore, it is best to have some snacks while drinking coffee. In addition, do not drink 2 hours before going to bed, caffeine will excite the brain and affect sleep.

The survey also showed that 39.3% of people drank coffee because they thought it tasted good, 42.2% relied on it to refresh themselves, and 19.2% drank it because of their eating habits. At the same time, 71.1% of people drank one cup a day, 25.2% drank two to three drinks a day, and 3.7% drank more than three cups a day. Sun Mengli said that drinking coffee is refreshing because caffeine excites the brain, which is the exact opposite of sleep giving the brain a rest. Therefore, "it's better to take a nap at noon, even for 10 minutes, than to drink coffee." In addition, it is advisable to drink no more than 3 cups of coffee a day. Sun Mengli said coffee drinkers should pay attention to blood pressure, blood lipids and hemoglobin. Because coffee is a calorie drink, especially when you drink it with your partner, many people don't feel hungry after drinking coffee, thus affecting food intake and affecting blood pressure, blood lipids and hemoglobin over time.

The survey showed that 21.2 percent of people had a rapid heartbeat after drinking coffee, 18.1 percent felt stomach discomfort, 2.6 percent had hand tremors, 1.7 percent kept sweating, and 56.5 percent had other uncomfortable symptoms. "the coffee is not too strong." Sun Mengli reminded everyone that it is best to drink hot coffee, which will reduce the stimulation to the stomach. If you drink too much iced coffee, it will hurt your stomach.