Tea and Human Health

According to Assoc. Prof. Dr. Nguyễn Duy Thịnh from the Institute of Biotechnology and Food Technology, Hanoi University of Science and Technology, green tea has been shown to increase longevity and reduce mortality rates from cardiovascular diseases. In every 100 grams of tea, there are approximately 500 mg of vitamin C and 1.2 mg of vitamin B2—four times higher than in soybeans and nine times higher than in rice. In addition, tea also contains vitamins B1 and A.

Regular Tea Consumption and Longevity

The activity of vitamin P has beneficial effects on blood vessel walls, strengthening vascular health. Experts believe that green tea contains polyphenols, which help protect against heart disease and hypertension. These naturally occurring compounds, also found in fruits and vegetables, can prevent or repair cellular damage, regulate blood sugar levels, and slow down weight gain. Regular tea consumption allows the body to absorb these beneficial polyphenols effectively.

Dr. Xinyan Wang from the Chinese Academy of Medical Sciences stated that drinking green tea regularly is highly beneficial, as it lowers the risk of cardiovascular diseases and mortality — but its effects are only evident with consistent and long-term consumption.

Similarly, Dr. Edward Okello, head of the Human Nutrition Research Centre at Newcastle University (Australia), emphasized that improvements in cognitive ability are not solely due to compounds in tea, but also influenced by the act of brewing tea and social interactions during tea drinking, according to The Times of India.

Scientific Research Findings

A recent study involving over 100,000 adults showed that those who drank green tea regularly lived an average of 1.5 years longer than non-tea drinkers. The study, conducted by the Chinese Academy of Medical Sciences, confirmed that long-term and consistent green tea consumption significantly reduces the risk of heart disease and premature death.

Other Health Benefits of Tea

Another study conducted by researchers from the National University of Singapore (NUS) and Wuhan University (China) suggested that daily tea consumption may reduce the risk of depression among the elderly. However, it remains unclear whether this effect stems from the tea itself or from the social engagement that often accompanies tea drinking.

Several earlier publications have also cited that compounds found in tea — including catechin, L-theanine, and caffeine — can improve mood, prevent cancer, and promote longevity.