Brewing a cup of tea can both relax the mood and cultivate one's character. For the "sedentary group" and "computer users" who often suffer from minor annoyances like eye pain and mood swings, adding specific ingredients to tea can help alleviate these physical discomforts, making it a good way to practice health preservation.

However, regarding drinking tea for health, it's best not to drink these 5 types of tea:

Over-brewed tea: If tea is steeped for too long, many substances harmful to the human body can be extracted.

Cold tea: Tea is best consumed hot; cold tea can cause stagnation of cold and accumulation of phlegm.

Contaminated tea: Some odors indicate toxicity, such as paint or camphor smell.

Strong tea: Strong tea contains large amounts of caffeine, theophylline, etc., which are highly irritating. Drinking strong tea can lead to insomnia, headache, tinnitus, blurred vision, and is also bad for the stomach; some people may feel nauseous after drinking it.

Overnight tea: Especially tea that has changed flavor, even if the change is not yet noticeable, it mostly breeds and multiplies a large number of bacteria. Because tea leaves contain a large amount of protein, most of which does not dissolve in hot water and remains in the leaves. When the water temperature is high, the protein on the tea leaves can rot. After sitting overnight, an enzyme mold forms. At the same time, the large amount of tannic acid残留 in the tea turns into a highly irritating oxide, which irritates the stomach and causes inflammation. Therefore, overnight tea should not be consumed.

Four Cups of Tea for Four Ailments

For liver fire, drink chrysanthemum tea. Many people often experience symptoms like dizziness, bitter taste in the mouth, dry and cracked skin, mouth sores, and irritability, which are mostly caused by excessive liver fire. Chrysanthemum has the effects of dispersing wind-heat, clearing the liver and improving vision, and nourishing the liver to reduce fire, which can alleviate symptoms like bitter mouth, headache, and sore throat. To calm liver fire, it's best to use Hangzhou white chrysanthemum or胎菊 (the unopened flower buds of Hangzhou white chrysanthemum). When brewing chrysanthemum tea, use boiling water around 100°C to steep for 3~5 minutes. Refill with boiling water when only 1/3 of the liquid remains.

For eye fatigue, drink goji berry tea. Office workers who spend long hours on computers and teenagers with heavy homework loads are prone to eye fatigue. Drinking goji berry tea, which has the effects of nourishing the liver and kidneys and improving vision, is most suitable. For blurred vision and other symptoms caused by liver and kidney deficiency, you can use 20 goji berries to brew tea. For those伴有 dry and irritated eyes, decreased vision, tearing in the wind, cataracts, etc., you can add 5 dried chrysanthemum flowers at the same time to make goji berry and chrysanthemum tea. However, those with damp-heat or phlegm-dampness obstructing the middle, external fever, spleen deficiency with cold-dampness (those with colds, fever, body inflammation, or indigestion) should not consume goji berries.

For poor mood, drink rose tea. Rose flowers are good at regulating qi to relieve depression, promoting blood circulation to remove stasis, and regulating menstruation to relieve pain. They also have辅助 therapeutic effects on mood disorders like depression and anxiety. When under pressure, drinking some rose tea can help stabilize emotions and calm the mind. Rose tea is best brewed with pure water and glass teaware. When served hot, the floral aroma is rich and refreshing. However, note that roses have an astringent effect, so those with constipation should not drink it.

For dry stools, drink cassia seed tea. Cassia seeds归 the large intestine meridian and have the effect of moistening the intestines to promote bowel movements. Regularly drinking cassia seed tea can also辅助 lower blood lipids. For daily health care, you can directly brew 15 grams of fried cassia seeds or crushed cassia seeds for tea. Those with habitual constipation can use 10~15 grams of fried cassia seeds, crushed, add 300~400 ml of water, boil for 10 minutes, then add 20~30 grams of honey, stir well, and take it morning and evening. However, those with spleen and stomach deficiency-cold, loose stools, or diarrhea should use it with caution.