Have you heard of 'tea polyphenol'? What is tea polyphenol like? Why does tea have so many benefits? It can be said that tea polyphenols are the soul of tea. The abundance of tea benefits is attributed to tea polyphenols. Through this book, the author expounds on the structure, properties, and healthcare functions of tea polyphenols.This book focuses on the properties and structural characteristics of tea polyphenols, and systematically describes the biological functions of tea polyphenols, especially the free radicals scavenging and antioxidant effects of tea polyphenols, regulation of oxidative stress, protection of nerve cells, anticancer effects, strengthening body immunity, preventing cardiovascular and cerebrovascular diseases, anti-inflammatory effects, reducing blood lipid and blood glucose atherosclerosis, myocardial protection, its role in Alzheimer's disease and Parkinson's disease, anti-aging properties, improving memory, anti-radiation effects, etc. The source and safety of tea polyphenols are also introduced.