A large-scale study involving nearly 486,000 adult volunteers over more than nine years has shown that regular tea consumption reduces the risk of vascular diseases by 11%. However, scalding tea has been linked to the opposite effect, reports infohub.kz.
Scientists tracked the development of various vascular disorders, including cerebrovascular lesions and peripheral artery disease. It was found that the habit of drinking tea regularly significantly lowers the likelihood of encountering such diagnoses. The most pronounced positive effect was observed in people who combined tea drinking with not smoking and high physical activity.
The benefits depended directly on the drink's characteristics and preparation method. The lowest disease risk was seen with consumption of 6 to 8 cups of moderately strong tea per day. Black tea showed a more stable association with vascular health than green tea. The authors emphasize that the work identifies only a statistical pattern, not a direct therapeutic effect of the drink.
The main exception was the temperature of the brew. Drinking tea that is too hot was linked to an increased risk of vascular disorders. Experts have not yet been able to determine definitively whether the heat itself raises the likelihood of disease or whether other hidden factors are at play.