Water is the source of our life, and it is one of the most essential material resources for human development and survival. Our lives depend on water at every moment, and water is one of the most important substances in human life. But did you know? You also need to drink water correctly.
Five Common Misconceptions About Drinking Water
Misconception 1: Drinking Water Too Quickly or in Excess
Drinking water too quickly or in excess can lead to rapid absorption of water, causing a swift increase in the body's fluid volume. This significantly increases the burden on the heart and may lead to symptoms like chest tightness, shortness of breath, and difficulty breathing. People with heart disease should pay special attention and drink small amounts of water frequently.
Misconception 2: Drinking Water That Is Too Hot or Too Cold
Water that is too hot can scald the oral cavity, esophagus, and gastric mucosa, impairing stomach function. Water that is too cold can irritate the gastric mucosa, causing stomach contractions and leading to gastric dysfunction.
Misconception 3: Drinking Excessive Water Before Bed
An increase in the body's fluid volume can place a greater burden on the kidneys, affecting kidney function and increasing the frequency of urination, which in turn can disrupt sleep quality. Additionally, it can cause swelling of the eyelids and face upon waking in the morning.
Misconception 4: Drinking Water Immediately After Strenuous Exercise or a Meal
This can加重 the burden on the digestive system, diluting gastric juice and reducing its sterilizing effect, which hinders food digestion. Drinking water too quickly can cause a rapid increase in blood volume, suddenly加重 the burden on the heart, and lead to a temporary imbalance of electrolytes such as potassium and sodium. In severe cases, it can even cause heart failure, chest tightness, and abdominal bloating. Therefore, after exercise, one should not drink excessive water too quickly, nor should they drink cold beverages, as this can affect heat dissipation from the body's surface, leading to colds, abdominal pain, or other illnesses.
Misconception 5: Long-term Consumption of Repeatedly Heated Drinking Water
If you are using tap water or bottled water at home, you can consider boiling it before drinking to prevent secondary pollution.
However, repeatedly boiling already boiled water causes a significant loss of nutrients and can lead to the deposition of certain heavy metals and the formation of nitrates. The latter can form carcinogenic nitrosamines in the body under the action of gastric juice and food. Therefore, long-term consumption of repeatedly heated water is harmful to human health.