First of all, tea is light. Caffeine rich in tea can stimulate the body's excitement, which is more obvious in the elderly. The heart endurance of the elderly is not as good as it used to be. Drinking strong tea for a long time will add extra burden to the heart and even induce and aggravate various heart diseases.
Secondly, drink less tea. After the excitement of tea is transmitted to various tissues and organs of the human body, it will drive muscles and blood vessels to tighten and contract accordingly, which will lead to a rapid increase in blood pressure. The elderly themselves are prone to diseases such as arteriosclerosis and hypertension, and improper drinking of tea may lead to critical symptoms such as stroke.
Third, it is advisable to drink tea in the morning. Drinking tea will also affect the sleep of the elderly. The excitement of tea will last for a long time, and even drinking tea in the afternoon may lead to insomnia at night.
In addition, when drinking tea, a large amount of tannic acid will cause indigestible precipitation of food protein, and affect the absorption of vitamins and trace elements, which will easily lead to malnutrition and aggravate habitual constipation of the elderly.
A recent study in the United States found that drinking one or two glasses of wine every day can help prevent Alzheimer's disease.
Researchers at Wake Forest University School of Medicine said at the annual meeting of the American Geriatrics Association held in Chicago recently that they had followed 3,069 elderly people for six years in order to understand the impact of drinking on their cognitive ability. The old people surveyed are male and female, with an average age of 79.
At the beginning of the study, 2587 respondents were determined to have normal cognitive ability, and 482 people had slightly impaired cognitive ability. In the study, the researchers learned about the daily drinking situation of these elderly people in detail, and considered other factors that can affect their cognitive ability, such as whether they smoke, suffer from depression and participate in social activities. Six years later, the researchers tested the cognitive ability of these old people.
It was found that if the elderly with normal cognitive ability drank one or two glasses of wine every day, their risk of developing Alzheimer's disease would be reduced by 37% within six years. However, for those elderly people with mild cognitive impairment, moderate drinking every day will not play a role in preventing Alzheimer's disease.
The study also found that if you drink too much (that is, more than two cups) every day, you will not only fail to prevent Alzheimer's Harmo's disease, but will increase the risk of Alzheimer's Harmo's disease by nearly 1 fold in six years.
The researchers explained that moderate drinking can make the brain release more acetylcholine, which can help brain cells communicate with each other, thus preventing cognitive decline.