Contraindications: Five groups of people should not drink strong tea.

There are also taboos associated with drinking tea, especially for people with certain medical conditions. Today, I will summarize five major taboos of drinking tea and five types of people who should not drink tea. Everyone should keep these in mind in their daily lives.

1. Stomach Ulcers

Strong tea can stimulate the secretion of gastric acid, increasing irritation to the ulcer surface, affecting healing, and worsening stomach conditions. Additionally, drinking strong tea while taking medication can reduce the effectiveness of stomach medicine, which is not conducive to recovery.

2. Arrhythmia

Tea contains substances like theophylline, which have a significant stimulating effect on the central nervous system. This can cause a rapid heartbeat, leading to tachycardia, and even cause palpitations. This poses a potential threat to patients with cardiovascular and cerebrovascular arteriosclerosis. A large amount of strong tea entering the bloodstream increases blood volume,加重心脏负担, and worsens the condition of heart failure.

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3. Hyperthyroidism

Patients with hyperthyroidism already have a high basal metabolic rate. If they consume large amounts of caffeine from tea, it will accelerate metabolism, leading to increased consumption of various nutrients. This prevents hyperthyroidism patients from getting adequate rest and can worsen their condition.

4. Kidney Stones

Tea contains tannic acid, which promotes the formation of kidney stones. This is very detrimental to the prevention and control of kidney stones. Therefore, patients with kidney stones should not drink strong tea.

5. Constipation

The tannic acid in strong tea can reduce the secretion of mucus by the intestinal mucosa, leading to decreased intestinal fluid secretion and a lack of lubrication for the intestines. This causes feces to remain in the intestines for a longer time, and the intestinal wall absorbs excessive moisture from the feces, leading to dry, hard stools that are difficult to pass. Therefore, people with constipation should also limit their tea intake.

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