Japanese matcha in Zhang Chengyu has caused many waves in recent years. Matcha ice cream, matcha muffins and other delicious foods are constantly innovating, attracting people's eyes and taste buds. Matcha itself has also become one of the must-buy lists for many people to travel to Japan. Matcha is not only a popular food, but also has the functions of scavenging active oxygen and reducing the risk factors of arteriosclerosis. The Japanese doctor of medicine even recommended matcha and lemon to drink together, which may also help prevent dementia! Matcha can help the anti-dementia substance "nobiletin" in lemon to be more easily absorbed by human body. Ding Zongtie, MD, president of Japan Pharmaceutical University, said that matcha is different from the common tea in Taiwan Province Province. Matcha grinds tea into powder and drinks it, so it can absorb the nutrients of tea to the greatest extent. For example, catechins in tea have a strong antioxidant effect, which can help remove reactive oxygen species harmful to human body. Ding Zongtie explained that active oxygen may cause arteriosclerosis, even increase cancer cells, or accelerate aging, and with the growth of age, there will be more and more active oxygen in the body, so it is very important to eliminate active oxygen. In addition, catechins can also activate the brain. Ding Zongtie explained that catechin is the source of bitter taste of tea. Bitterness was originally a method used by the human body to distinguish toxic substances. Taste will convey this warning to the brain and activate sympathetic nerves in the autonomic nervous system responsible for maintaining vigilance and concentration, so the brain will be more active and awake. In addition to citric acid, lemon peel is also rich in polyphenols, which can improve brain function, prevent dementia, decompose alcohol and other toxins and activate the liver. Ding Zongtie emphasized that one of the most common causes of Alzheimer's Harmo's disease is the deposition of "amyloid β protein" in the brain, and nobiletin may have the effect of reducing this substance. A study led by the Department of Medical Biochemistry, School of Pharmacy, Shizuoka University, Japan, was published in the journal Bulletin of Biology and Pharmacy. Through animal experiments, it was pointed out that nobiletin can not only reduce the deposition of β -amyloid in the brain, but also improve the memory of animals with memory impairment. Matcha can also help to take more nobiletin. Ding Zongtie pointed out that the foam produced when making matcha is actually "saponin", which can help citrinin in lemon peel to dissolve out more effectively and improve the absorption effect of citrinin by human body. However, Ding Zongtie also reminded that the lemon peel must be cleaned to ensure that there are no pesticides and preservatives. Of course, it is recommended to choose lemons planted without pesticides to avoid eating substances harmful to human body. Lemon matcha do this, each cup of anti-dementia substance matcha powder or green tea powder 1 teaspoon. Half a lemon. Water 200ml. Honey 1 teaspoon. Practice matcha with warm water below 50 degrees. Just add the lemon that is really washed and sliced, or use honey to taste it. Ding Zongtie suggested that because caffeine and catechin can activate sympathetic nerves, it is best not to drink them at night to avoid insomnia. Lemon matcha is most suitable for drinking 1 cup every morning, which can help the brain to be more awake, but if it is a person with a bad stomach, it is best to control it within 2 ~ 3 cups a day.