1, green tea: Japanese scholars have found that drinking green tea often can improve cognitive function; The effective component of green tea to improve brain function is catechin, a powerful antioxidant. A large amount of oxygen used in human metabolism will produce free radicals, and catechins can pass through the blood-brain barrier to play an antioxidant role and prevent the brain from being damaged by free radicals. ?

2. Mint tea: Compared with the participants who drank chamomile tea or hot water, the participants who drank mint tea had significantly improved their long-term memory, working memory and alertness. Compared with participants who drank mint tea or hot water, participants who drank chamomile tea had slower memory and attention. ?

Precautions for drinking tea:

Because tea is polluted by harmful substances such as pesticides in the process of planting and processing, there will always be some residues on the surface of tea, so the first-time tea should be discarded because of its washing function.

Drinking tea during menstruation, especially strong tea, will induce or aggravate menstrual syndrome. Medical experts have found that compared with people who don't drink tea, people who have tea habits are 2.4 times more likely to have menstrual tension, and those who drink more than 4 cups of tea a day are 3 times higher.

The above reference sources:

People's Network-The Health Care Function of Green Tea on Enhancing Memory and Controlling Weight

People's Daily Online-The latest research in Britain found that mint tea can improve memory.