Today, more people are prioritizing hydration, yet few truly drink water correctly. Drinking without regard for timing, content, or thought only proves you're drinking water—not necessarily drinking it right.In this era where cherishing one's health has become a trend, even the once-simple act of drinking water has evolved into a complex science. So what are the incorrect ways to drink water?
1. Tap Water
Some people habitually turn on the faucet in the morning and drink a glass of tap water. This is incorrect.Water stagnating overnight in faucets and pipes undergoes hydration reactions with metal surfaces and faucet chambers, contaminating it with metals. Additionally, residual microorganisms in the water multiply, creating a substance laden with harmful substances. Worse, it may harbor Legionella bacteria—an acute respiratory pathogen threatening human health.
Therefore, the first water flowing from the tap in the morning is stagnant and undrinkable. Those with this habit should correct it immediately to avoid harming their health.
2. Beverages
The first drink in the morning should not be commercially available juices, cola, soda, coffee, milk, or similar beverages.Carbonated beverages like soda and cola often contain citric acid, which accelerates calcium excretion during metabolism and reduces blood calcium levels. Long-term consumption may lead to calcium deficiency. Other beverages promote urination; drinking them in the morning not only fails to effectively replenish the body's lost fluids but also increases the body's demand for water, potentially causing dehydration.
Juice, milk, and coffee are also unsuitable as the first beverage in the morning. These substances fail to provide the hydration the body most urgently needs at this time. Moreover, they force the digestive system to work under dehydrated conditions, which is detrimental to health.Especially in water stored for extended periods, bacterial contamination is inevitable, accelerating the decomposition of nitrogen-containing organic compounds and increasing nitrite production. When consumed, these nitrites bind with hemoglobin, impairing the blood's oxygen-carrying capacity.
Therefore, water left in a thermos for days, repeatedly boiled water, or water boiled for extended periods on a stove has undergone chemical changes and should not be consumed. It is advisable to drink water that has been boiled once and consumed within 24 hours.
Additionally, bottled or barrel-packed purified water and mineral water should not be stored for too long.Large bottles or barrels of purified water or mineral water should not be consumed after three days. 4. Saltwater Some believe drinking diluted saltwater benefits health and consume it upon waking. This notion is mistaken. While diluted saltwater aids hydration—necessary after summer sweating—it is not only ineffective but harmful as a morning rehydration practice.
Physiological research indicates that although no water is consumed during overnight sleep, physiological processes like breathing, sweating, and urination continue, causing significant fluid loss. Upon waking, blood has become concentrated. Drinking a moderate amount of plain water at this time can quickly dilute the blood, correcting the hypertonic dehydration that occurs overnight.Drinking salted water would instead worsen hypertonic dehydration, intensifying thirst. Moreover, morning marks the first peak of elevated blood pressure in the human body. Consuming salted water further raises blood pressure, posing health risks.
Therefore, for your health, remember these four types of fluids should never be consumed upon waking.