Caffeine in coffee is almost insoluble in cold water but soluble in hot water. ? Caffeine can stimulate the cerebral cortex, eliminate drowsiness, increase the ability of feeling and thinking, and can be used as a cardiotonic for regulating heart function. Caffeine can also dilate renal blood vessels and induce diuresis. However, it is not only coffee that contains caffeine. ? Usually a cup of coffee contains 60-65 milligrams of caffeine. ? But excessive caffeine intake can easily lead to tinnitus and myocardial hyperfunction (increased heartbeat and pulse frequency)? The pulse is uneven, so be sure to drink proper amount of coffee.
Coffee is considered as a healthy drink, but if you want to be healthy, you must drink coffee reasonably and scientifically, and at the right time and in moderation. ? After getting up in the morning, I have a drink to refresh myself. A sip at work during the day can refresh you. Coffee can be a little stronger at this time. ? However, it is recommended to drink coffee after meals or at night. ? Coffee or tea has a refreshing effect, but it is not suitable for catering and should be drunk after meals. ? Some friends like coffee very much, but they are afraid that drinking coffee often will get angry. ? We often see many people order coffee. This way of drinking coffee is not easy and unhealthy. ? When drinking coffee, you should add a cup of white water, which has two advantages: First, take a sip of white water before drinking coffee to wash off the peculiar smell in your mouth, and then you will feel mellow when drinking coffee. ? Secondly, due to the diuretic effect of coffee, drinking more white water can increase the amount of urination and promote renal function? This way, not only can you taste delicious coffee, but you don't have to worry about getting angry. Is it killing two birds with one stone?
Professor Jiang Heyuan from the Tea Research Institute of China Academy of Agricultural Sciences told everyone that tea actually has both a "refreshing" and a "refreshing" effect. It can not only make the brain more awake and flexible, but also inhibit the excessive excitement of the brain nerves and make people fall asleep easily. See how you drink it. ? Drinking tea depends on your physique-tea is the most popular drink in summer, but medical experts remind you to distinguish your physique and drink it properly, otherwise it will easily hurt your health. ? Traditional Chinese medicine believes that people's constitutions can be divided into dry heat and deficiency cold, and tea can also be divided into cold and warm through different production processes, so it is also important to drink tea with different constitutions. ? People with hot constitution should drink herbal tea, while those with weak constitution should drink warm tea.