The efficacy of tea leaves:
1. Lowering blood pressure
Catechins, commonly known as tea tannins, are unique components of tea leaves, which are bitter, astringent and astringent. It can be combined with caffeine in tea soup to alleviate the physiological effect of caffeine on human body. It has antioxidant, anti-mutation, anti-tumor, reducing blood cholesterol and low-density ester protein content, inhibiting blood pressure rise, inhibiting platelet aggregation, antibacterial, and anti-allergic effects.
2. Refreshing
Caffeine, with bitter taste, is an important component of tea soup. In black tea soup, it combines with polyphenols to form a complex; Emulsifying phenomenon is formed when the tea soup is cold. Catechins and their oxidative condensation products peculiar to tea can slow down and sustain the excitement of decaffeinated caffeine, so drinking tea can keep people awake and have more endurance.
3. Health care
Tea is rich in eleven minerals such as potassium, calcium, magnesium and manganese. Tea soup contains more cations and less anions, which belongs to alkaline food. Can help body fluids maintain alkalinity and keep healthy.
4. The taste is slightly bitter, sweet and cool. It can clear the head, wake up the spirit, relieve polydipsia, facilitate urination, promote digestion and detoxify. Used for wind-heat attack, dizziness; Heat and thirst, or excessive drinking; Sleep well, and you will be exhausted. Short and red urine is unfavorable, or edema and less urine; Greasy food accumulation, indigestion; Damp-heat diarrhea and dysentery.
/iknow-pic.cdn.bcebos.com/c8ea15ce36d3d53975ecbf63787e95352ab36"target="_blank"title=""class="ikqb_img_alink"> /iknow-pic.cdn.bcebos.com/c8ea15ce36d3d53975ecbf63787e95352ab36? x-bce-process=image%2Fresize%2Cm_lfit%2Cw_6%2Ch_8%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="/c8ea15ce36d3d53975ecbf63787e95352ab36"/>
description of tea:
tea, (scientific name: Camelliasinensis(L.)O.Ktze.), a shrub or a small tree, with hairless shoots. Leaves leathery, oblong or oval, blunt or sharp at the apex, wedge-shaped at the base, shiny on the top, hairless or initially pilose below, serrated at the edge, and glabrous on the petiole. The flowers are white, and the flower stalks are sometimes slightly longer; Sepals broadly ovoid to round, glabrous, persistent; Petals broadly ovoid, slightly jointed at the base, glabrous on the back, sometimes pubescent; Ovary densely covered with white hairs; Style glabrous. Capsule 3-spherical or 1-2-spherical, 1.1-1.5 cm high, with 1-2 seeds per ball. The flowering period is from October to February of the following year.
Wild species are found all over the mountainous areas of the provinces south of the Yangtze River in China. They are small trees with large leaves, often more than 1 cm long. For a long time, after extensive cultivation, the coat and leaf shape have changed greatly. Tea can be used as a drink, which contains many beneficial ingredients and has health care effects.
Beneficial components:
1. Tea polyphenols are the most soluble components in tea, and they are also the most important substances for tea to exert its health care effects. The most typical representative is catechin (phenol), which has many effects such as antioxidation (eliminating oxygen free radicals), anti-inflammation, reducing the incidence of cardiovascular diseases, preventing cancer, lowering blood fat, reducing body fat formation, antibacterial, changing the ecology of intestinal flora and so on. Studies show that after drinking a cup of tea for half an hour, the antioxidant capacity (the ability to resist oxygen free radicals) in the blood increases by 41%~48%, and it can last at a high level for one and a half hours.
2. Tea pigment mainly includes chlorophyll, β-carotene, etc., which has the functions of anti-cancer, delaying aging and beautifying.
3. Theanine can improve brain function and enhance memory and learning ability. It can be used for preventing Alzheimer's disease, Parkinson's disease and autonomic nervous dysfunction.
4. Tea polysaccharide is a complex mixture. Tea polysaccharide has the functions of anti-radiation, increasing the number of white blood cells, improving immunity and lowering blood sugar. The folk practice of soaking and drinking coarse tea to treat diabetes is mainly to play the role of tea polysaccharide.
5. The content of υ-aminobutyric acid in natural tea is not much, but it is greatly increased after processing. The main function of υ-aminobutyric acid is to dilate blood vessels and lower blood pressure, so it can be used as an adjuvant treatment for hypertension. It can also improve cerebral blood circulation and enhance the metabolic ability of brain cells, which is helpful for the rehabilitation of stroke (stroke) and cerebral arteriosclerosis sequelae.
Reference:/baike.baidu.com/item/%E8% 8c% B6% E5% 8f% B6 "target =" _ blank "title =" Baidu Encyclopedia Tea "> Baidu baike tea