The China-PAR project implemented in China since 1998 aims to prevent the risk of cardiovascular disease among Chinese residents. In this large-scale study, scientists analyzed the effects of drinking tea on human health. 100,902 people participated in this analysis. These people did not initially have heart disease, myocardial infarction or cancer.
They are divided into two groups: one group for people who drink tea regularly (at least three times a week), and one group for people who rarely drink tea (less than three times a week). The average tracking time for participants was 7.3 years. During this period, compared with people who rarely drink tea, people who drink tea regularly have reduced the risk of cardiovascular disease and myocardial infarction by 20%, 22% and 15% respectively. The analysis of the age of disease development shows that people over the age of 50 who drink tea regularly have a delay of 1.41 years and a life span of 1.26 years longer than those who seldom drink tea.
Due to Chinese characteristics, most participants (49%) like to drink green tea without exception, and only 8% like to drink black tea. Interestingly, the analysis based on the type of tea drinking shows that only green tea has a good effect on health. No obvious protective effect of black tea on the body has been found.