Coffee and tea should not be consumed after 8:00 PM

Coffee and tea should not be consumed after 8:00 PM

In daily life, coffee and tea are favorite drinks for many people. They can not only refresh the mind, but also have certain health benefits. However, we need to pay attention to the fact that it is not suitable to drink coffee and tea after a certain time in the evening. This article will discuss why it is not suitable to drink coffee and tea after a certain time in the evening from the aspects of physical health and sleep quality.

Affects sleep quality

First, drinking coffee and tea after a certain time in the evening will affect the quality of sleep. This is because coffee and tea contain stimulants - caffeine. When we consume a large amount of caffeine, it will cause the nervous system to become excited and inhibit the glands from secreting melatonin. Melatonin is one of the important substances that regulates the body's biological clock and promotes sleep.

Studies have shown that consuming more caffeine in the evening will prolong the time it takes to fall asleep and reduce the time of deep sleep and rapid eye movement (REM) sleep. This will cause us to feel tired and lack of energy the next morning, affecting our work and study efficiency. Therefore, it is not advisable to drink coffee and tea after a certain time in the evening.

Increase gastrointestinal burden

Secondly, drinking coffee and tea after a certain time in the evening will increase the gastrointestinal burden. Caffeine is a stimulant that increases gastric juice secretion and stimulates gallbladder contraction after entering the human body. This may cause digestive system disorders and cause indigestion, heartburn and other problems.

Furthermore, consuming large amounts of fluids (including coffee and tea) in the evening increases the risk of frequent urination at night, which can interrupt sleep and require getting up in the middle of the night to go to the bathroom, further affecting sleep quality.

Impact on cardiovascular health

In addition, drinking coffee and tea after a certain time in the evening can have adverse effects on cardiovascular health. Caffeine can increase the workload of the heart, causing an increase in heart rate and blood pressure. This is especially bad for people who already have cardiovascular disease.

In addition, long-term high caffeine intake at night can also make the body tolerant to caffeine, requiring more coffee or tea to achieve the same stimulating effect. This may lead to excessive caffeine intake, further increasing cardiovascular health risks.

Interferes with nutrient absorption

Finally, drinking coffee and tea after a certain time in the evening can interfere with nutrient absorption. Tea contains substances such as tannic acid, which easily combine with iron in food to form insoluble compounds when fasting, and hinder the absorption of iron in the intestines.

In addition, drinking a lot of tea may also affect the absorption of trace elements such as calcium and zinc, which will bring us malnutrition problems and may cause related health problems.

Summarize

In summary, it is not advisable to drink coffee and tea after a certain time in the evening. This is because consuming caffeine at night can affect sleep quality, increase gastrointestinal burden, have adverse effects on cardiovascular health, and interfere with nutrient absorption. We should arrange our eating habits reasonably and avoid consuming caffeinated drinks too close to bedtime in the evening.