15 cold knowledge of tea, and finally 99% people don't understand it!

The following is the cold knowledge of 15 tea:

1. Both tea and coffee contain caffeine, but tea contains more caffeine.

2. The hometown of tea is China, and tea tree has a long history of cultivation in China.

There are many kinds of tea, among which green tea, black tea, oolong tea, white tea, yellow tea and black tea are the most common.

4. The quality of tea is influenced by many factors, including producing area, picking time and production technology.

Tea is rich in antioxidants, which can fight against free radicals and help prevent many chronic diseases.

6. Tea polyphenols in tea can inhibit the growth of bacteria and help protect oral health.

7. Aromatic substances in tea have unique fragrance and taste, which helps to relax and relieve stress.

8. Theophylline in tea can improve alertness and cognitive ability, but excessive intake can cause side effects such as anxiety and insomnia.

9. Fluorine in tea helps to protect teeth health and prevent dental caries and periodontal disease.

10. The high content of vitamin C in tea helps to improve immunity and prevent diseases such as colds.

1 1. The cellulose in tea helps to lower cholesterol and blood lipids and prevent cardiovascular and cerebrovascular diseases.

12. Theanine in tea can promote blood circulation in the brain and help improve attention and memory.

13. The minerals in tea, such as potassium, magnesium and iron, help to maintain the normal function of the body.

14. Polyphenols in tea have anti-cancer effects and can prevent various cancers.

15. Tea polyphenols in tea can also inhibit the growth of viruses and help prevent viral colds and other infectious diseases.