The habit of having a glass of water on the bedside table is considered completely natural by many of us. It helps us follow the drinking regime and we don’t have to run to the kitchen in the morning. But health expert Kelly Johnson-Arbor has just revealed the disturbing truth about this habit. What we drink in the morning can contain dangerous substances. Dust, bacteria and even insects can become part of your morning ritual.

What really happens to water during the night?

Water in an open glass acts like a magnet for all impurities floating in the air. Household dust is not just ordinary dirt – contains a lot of toxic chemicals. They gradually settle on the water surface during the night. Expert Johnson-Arbor points out that long-term consumption of such contaminated water can lead to health complications. Especially for people with weakened immunity or allergies, this habit represents an unnecessary risk.

The mysterious change in taste has a scientific explanation

You may have already noticed that water that has been standing by your bed all night tastes different. This phenomenon has its scientific explanation. During the night, a chemical reaction takes place between water and air. Carbon dioxide from the air dissolves in water and forms carbonic acid. It is this transformation that causes the characteristic bitter taste of morning water. So it is not a matter of imagination, but a real chemical change in the composition of water.

The invisible inhabitants of your glass

However, the biggest risk is bacteria. Every time we drink, we leave a microscopic amount of saliva on the edge of the glass. They create an ideal environment for the reproduction of microorganisms. The situation becomes even more risky if several members of the household drink from the same glass. Therefore, the Johnson-Arbor expert strongly warns against sharing glasses, especially if the water has been standing in them for a long time.

Practical solutions for healthier sleep

Fortunately, there are simple ways to maintain the comfort of drinking water at night without health risks. The best solution is to use a closable bottle or a thermos muga. Alternatively, you can cover the glass with a small saucer. In this way, you protect the water from impurities and at the same time slow down the chemical processes that change its taste. It is also important to regularly wash drinking containers and replace water that has been in them for more than 24 hours.

A glass of water at night – a habit that can harm your health