There are secondary amines in overnight tea water, which will cause cancer if drunk too much.
Second, symptomatic tea:
Everyone uses tea according to his own situation.
Third, light is better than thickness;
Tea should be light.
Fourth, it is warm and hot, but cold drinks have more disadvantages:
Drinking herbal tea not only has no effect of clearing away heat and resolving phlegm, but also has the disadvantages of cold coagulation and phlegm drinking.
Five, don't drink "hollow tea":
Do not drink tea on an empty stomach.
Six, strong and moderate, weak and drink less:
Young and strong people, drinking tea in moderation can reduce fire and eliminate dryness, which is more appropriate. It is good for people not to drink tea in their later years.