Tea is good for your health! A recent Chinese study has just demonstrated the benefits of this ancestral drink.
A new study confirms the health benefits of tea. Published in the medical journal European Journal of Preventive Cardiology, it is the result of the monitoring of more than 100,000 participants with no history of heart attack, stroke or cancer for approximately seven years. The latter were separated into two groups: the usual tea drinkers with a consumption of more than three cups a week, and non-drinkers or occasional drinkers. The researchers observed that tea drinkers had better life expectancy and were healthier.
Drinking tea lowers the risk of cardiovascular disease and lengthens life expectancy
According to analyzes, tea drinkers live 1.2 years longer than those who do not drink tea and are 20% less likely to develop coronary heart disease and stroke.
“The protective effects of tea were more pronounced among regular and habitual drinkers. The study of the mechanisms suggests that the main bioactive compound in tea, polyphenols, is not stored in the body in the long term. Thus, frequent consumption of tea over an extended period may be necessary for a cardioprotective effect, “commented Dr. Dongfeng Gu of the Chinese Academy of Medical Sciences, one of the study’s authors.
Green tea more effective than black tea
Important detail, it is the green tea drinkers who benefit from increased longevity with about 25% less risk of contracting heart disease or stroke. These findings have not been observed with black tea drinkers.
“Among the participants in our study, 49% of regular tea drinkers consumed green tea more frequently while only 8% preferred black tea. This small proportion of black tea drinkers makes it more difficult to draw conclusions but there were no significant observations for black tea “specified Doctor Gu who recalls that the preference for green tea is a specificity of East Asia where the study was carried out.
This difference would be due to the fact that green tea is a source of polyphenols which have a protective role against cardiovascular diseases and its risk factors including hypertension and dyslipidemia (the increase in plasma cholesterol and triglycerides). Since black tea is fermented, polyphenols can lose their antioxidant effect during the fermentation process. According to the study, black tea is sometimes consumed with milk, which can interact with the beneficial effects of the tea.
Effects mostly observed in men
Finally, scientists report that the beneficial effects of tea have mainly been observed in men. “One reason could be that 48% of men were regular tea drinkers compared to only 20% of women. Second, the women studied were less prone to heart disease and stroke. These differences resulted in results were more significant in men “according to Dr. Wang, another author of the study who said that the studies were continuing with more people, including women, in order to have more precise results.