Harmless fresh lemon soaked in water, because it is extremely rich in vitamins, is a good beauty product, which can prevent and eliminate skin pigmentation and play a whitening role; Drinking lemonade can also prevent and treat cardiovascular diseases, because lemonade can alleviate the role of calcium ions in promoting blood coagulation, so it can prevent and assist in the treatment of hypertension and myocardial infarction; Lemon water contains a lot of citrate, which can inhibit the crystallization of calcium salt, thus preventing the formation of kidney calculi, and even reducing the number of stones in some patients with chronic kidney calculi. The research results published at the annual meeting of the American Urological Society also show that drinking lemon juice can increase the level of citrate in urine, and citrate can prevent minerals in urine from forming crystals in the kidneys, that is, kidney calculi. Lemon is rich in vitamin C, which has many functions, such as anti-bacteria, improving immunity and assisting the formation of bone collagen. Drinking lemonade regularly can supplement vitamin C. Drinking 500 to 1000 ml of lemonade every day can reduce runny nose when you have a cold, and the cold will spread quickly, especially when you have just caught a cold, and you can recover without taking medicine. In addition to resisting bacteria and enhancing immunity, it also has the effects of stimulating appetite, promoting digestion, promoting fluid production and quenching thirst, and relieving summer heat. What is even less well known is that lemon can also expectorate, and the expectorant effect is stronger than that of oranges and citrus. Add warm water and salt to lemon juice, drink it and cough up the thick phlegm accumulated in your throat. At the beginning of a cold, you may wish to wash it with lemon and honey, which can relieve sore throat and reduce discomfort such as dry throat. Slice the lemon and soak it in water. It is best to use warm water when soaking, which helps to preserve more nutrients in lemons. Of course, you can also add lemon slices when drinking black tea and drinks. It is worth noting that even the best food can't be eaten recklessly. Lemon is no exception. Many women drink a lot of lemonade every day for beauty, which hurts their stomachs. So drink lemonade in moderation, not more than 1000 ml per day. In addition, because the pH value of lemon is as low as 2.5, people with hyperacidity and gastric ulcer should not drink lemonade. Lemon tea has these two functions, one is to lose weight, the other is to moisten her husband and beautify her face. Lemon tea has a special sedative effect. According to Russians, drinking lemon tea rich in vitamin C can prevent colds. ... American scientists have found that drinking hot lemon tea can help fight skin cancer. It has the effect of delaying skin aging.