An old man fainted while taking a walk due to severe anemia caused by long-term drinking of strong tea. It turns out that strong tea has so many harmful effects!

A 65-year-old man in Changsha suffered from severe anemia due to long-term drinking of strong tea. He suddenly fainted while taking a walk and was sent to the hospital. It is reported that the old man loves to drink strong tea.

1. What is the cause of anemia caused by drinking too much strong tea?

It turns out that strong tea will inhibit the absorption of iron. When tea meets iron supplements, the polyphenols in the tea will combine with iron ions to form insoluble precipitates, affecting the absorption of iron supplements.

It is estimated that drinking a cup of tea during a meal can inhibit the absorption of about 60% to 70% of the iron in the diet, while drinking tea between meals can inhibit the absorption of about 20% of non-heme iron.

Strong tea can also easily reduce the efficacy of hypnotic, sedative and other drugs, iron-containing blood tonics, enzyme preparations and other drugs. It is recommended not to drink tea within two hours of taking medicine.

It contains a large amount of caffeine, which can stimulate the nerves, especially drinking strong tea at night can cause insomnia.

2. Strong tea hurts the stomach

Drinking strong tea can cause great irritation to the gastrointestinal tract. Excessive caffeine and theophylline in tea can stimulate the gastric mucosal cells, leading to increased gastric acid secretion, causing gastric inflammation, congestion, erosion, and even gastric ulcers.

3. Strong tea hurts bones

The caffeine in strong tea will inhibit the absorption of calcium and accelerate the excretion of calcium in urine, which can easily induce calcium loss, lead to osteoporosis, and even fractures.

4. Strong tea makes you sad

The caffeine and theophylline in tea can cause people's heart rate to accelerate, blood pressure to rise, breathing to increase, arrhythmia, and palpitations. For patients with hypertension, coronary heart disease or heart failure, strong tea will increase the burden on the heart.

5. Is it advisable to drink strong tea after drinking alcohol?

As the saying goes, drinking tea can help sober you up. In fact, alcohol can excite the nerves, and the caffeine and theophylline in tea can also excite the brain and increase the burden on the cardiovascular and cerebrovascular systems.

Especially drinking strong tea after being drunk will cause the unoxidized acetaldehyde to enter the kidneys prematurely and damage the kidneys.

6. What is strong tea?

In terms of quantity, a healthy adult should drink about 12 grams of tea a day, 3 grams each time, and brew it with 150 ml of water. If it obviously exceeds this amount, it is considered strong tea.

Of course, in addition to strong tea, moldy tea, tea with bad taste, tea that has been steeped for a long time, overly hot tea, raw tea, and tea with burnt taste are all not to be drunk as they are harmful to the body.

The principles of drinking tea for health preservation should be remembered:

Drink light and moderate amounts after meals.

Don't drink before going to bed, just brew and drink slowly.

Do not drink while taking medicine or after drinking alcohol.