In January 2025, a study published in a sub-journal of the world's top authoritative magazine "Nature" showed that drinking green tea is good for brain health. Drinking 3 cups of green tea a day can reduce brain white matter lesions, indicating that drinking green tea can help prevent cognitive decline and dementia.
Analysis found that as the daily consumption of green tea increased, the volume of white matter lesions gradually decreased. Compared with 1 cup (200 ml) a day, people who drank 3 cups (600 ml) a day had a significant 3% reduction in brain white matter lesions.
Researchers said that white matter lesions are a sign of cerebral small vessel disease, which is associated with cognitive decline, vascular dementia and Alzheimer's disease. The results show that drinking three or more cups of green tea a day may help protect brain health.
As for the potential mechanism, the study pointed out that catechins in green tea have been proven to have antioxidant, anti-inflammatory and anti-hypertensive effects, and can play a neuroprotective role by inhibiting the aggregation and production of amyloid beta.
Drinking tea has many benefits for the human body, which is mainly due to the rich nutrients and bioactive substances in tea.
Antioxidant
Among the six major types of tea, no matter which type of tea, they are rich in tea polyphenols, and tea polyphenols (especially catechins) are very powerful antioxidants that can help remove free radicals in the body and delay cell aging.
Refreshing
It is well known that drinking tea can refresh the mind, because the caffeine in tea can stimulate the central nervous system, improve attention and reaction ability, and relieve fatigue. In addition, L-theanine in tea can soothe nerves, help relax the mood, and improve people's concentration.
Promote digestion
Drinking tea can relieve greasiness. The ingredients in tea can help break down fat and promote digestion, especially old black tea is particularly suitable for drinking after meals. In addition, tea polyphenols have antibacterial effects, which can inhibit the growth of harmful intestinal bacteria and improve intestinal health.
Enhance immunity
After brewing tea, the tea soup is infused with a variety of vitamins and minerals, including vitamin C, vitamin E, zinc, selenium, etc., which are needed by the human body, and can significantly enhance the function of the immune system.
Reduce the risk of cardiovascular disease
Tea polyphenols in tea can inhibit the absorption of cholesterol and reduce low-density lipoprotein in the blood. At the same time, drinking tea helps dilate blood vessels, promote blood circulation, and reduce the risk of high blood pressure and heart disease.
Improve mental health
As the old saying goes, "peace of mind eliminates all diseases." Modern people have high pressure in life and fast work pace, and they will be more or less "tired in the heart." Drinking tea can help relax the mood and relieve anxiety and stress.
During the process of brewing tea, you can slow down your movements and relax your body and mind. The aromatic substances emitted by most tea soups can make people feel happy.
Although drinking tea is good, you must also have a "way"
Drink in moderation: Do not drink too much tea every day. Excessive consumption may cause insomnia or gastrointestinal discomfort.
Different people have different body types: different types of tea are suitable for different body types. For example, people with weak spleen and stomach should drink less green tea and more black tea or Pu'er tea.
Avoid drinking tea on an empty stomach: drinking tea on an empty stomach may irritate the stomach and intestines. It is recommended to drink it after meals.
