Some people have the habit of drinking tea for a long time, but they still have high blood pressure and need to take antihypertensive drugs for a long time. Does drinking tea have an impact on the drugs?
There are relevant studies in my country that show that people who regularly drink tea can reduce the incidence of myocardial infarction and cerebral infarction compared with people who do not drink tea. This shows that drinking tea is a good habit that is beneficial to health and can reduce cardiovascular and cerebrovascular risks. However, the effects of green tea and black tea are different, and people who take medicine for a long time should be aware that drinking tea may affect the effect of the medicine.
1. Controversy over the health effects of drinking tea
The impact of drinking tea on health has always been controversial. Some people say that tea contains tea polyphenols, alkaloids, vitamins, and other beneficial substances. It can also excrete sodium ions through diuresis, which can protect blood vessels and lower blood pressure.
Some people also say that tea contains caffeine, theophylline, and theobromine. These substances can cause nerve excitement, accelerate heart rate, and increase blood pressure. This is proven by the fact that drinking tea can refresh you, so people with high blood pressure are not recommended to drink tea.
In fact, both statements are correct. The impact of tea on the human body is divided into two aspects. The concentration of drinking tea will affect the result. If the tea is thicker, it will have more central stimulant effects; if the tea is lighter, it will have more health-care effects.
2. The functions of green tea and black tea are different
In related studies, regular drinking of green tea has greater cardiovascular benefits, while regular drinking of black tea has much less cardiovascular benefits. This may be related to the higher content of tea polyphenols in green tea (about 18%), while black tea has undergone a fermentation process. Although the taste is better, the beneficial components such as tea polyphenols are reduced (about 10%), reducing the cardiovascular protective effect.
Therefore, for the elderly, it is appropriate to drink lighter green tea, which can obtain cardiovascular health benefits and avoid the adverse effects of the exciting central effects of strong tea. When making tea, it is good to have a slight tea taste. If it is too bitter, it will be harmful to health.
3. Do not use tea to take medicine
Tea contains refreshing substances. People with sleep disorders, as well as people taking sedative and hypnotic drugs such as diazepam, alprazolam, eszopiclone, etc., are not suitable to drink strong tea, nor are they suitable to drink tea at night, otherwise pharmacological antagonism will occur.
Tea contains tannins, which react with metal ions to form insoluble complexes. For example, iron supplements taken by anemia patients, calcium supplements taken by osteoporosis patients, and other drugs containing metal ions are not suitable to be taken with tea, otherwise the efficacy of the medicine will be weakened.
The beneficial ingredients (such as protein, amino acids, etc.) in tonic traditional Chinese medicine (such as ginseng, fleece-flower root, astragalus, etc.) will combine with the tannins in the tea, affecting absorption.
People with stomach problems should not drink tea. The caffeine in tea will stimulate gastric acid secretion and aggravate the damage to the gastric mucosa. When drinking tea, be careful not to overheat the water, otherwise it will burn the esophageal and gastric mucosa, which may increase the incidence of cancer.
To sum up, drinking tea regularly is beneficial to health, especially in reducing the risk of cardiovascular and cerebrovascular diseases. However, you should pay attention when drinking tea. Light tea is more beneficial to health than strong tea. Green tea has higher health care effects than black tea. It is not recommended to drink tea at night to avoid affecting sleep, and it is not recommended to take medicine with tea for people who take medicine for a long time. It is safer to wait more than 2 hours between drinking tea and taking medicine.
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