Although modern scientific research confirms that drinking tea is beneficial to health, it is still advisable to remind the elderly that they should drink tea early, in moderation, and weakly.
First, tea should be weak. The caffeine rich in tea has a stimulating effect on the body, which is more pronounced in the elderly. The heart's tolerance in the elderly is not what it used to be. Drinking strong tea for a long time will place an extra burden on the heart and may even induce and aggravate various heart diseases.
Second, tea should be consumed in moderation. When the stimulating effect of tea is transmitted to various tissues and organs of the body, it will cause muscles and blood vessels to tense and contract accordingly, leading to a rapid increase in blood pressure. The elderly are already prone to diseases such as vascular sclerosis and high blood pressure. Therefore, improper tea consumption may lead to critical conditions such as stroke.
Third, it is advisable to drink tea in the morning. Drinking tea can also affect the sleep of the elderly. The stimulating effect of tea can last for a long time. Even if the elderly drink tea in the afternoon, it may cause insomnia at night.
In addition, the large amount of tannic acid consumed during tea drinking can cause food protein to form indigestible precipitates and affect the absorption of vitamins and trace elements, which can easily lead to malnutrition and aggravate habitual constipation in the elderly.