2. The shelf life of cold boiled water and hot water bottle boiled water shall not exceed 48 hours.
It is not advisable to turn off the fire when the water is just boiling, and then turn off the fire after boiling for 3 minutes.
4. It is not advisable to drink plenty of water immediately after work or exercise. You should rest for 20 minutes before drinking water. Because after work or exercise, the blood vessels in the gastrointestinal tract are contracting, and most of the blood is concentrated in the limb muscles that are tense due to work or exercise. Drinking a lot of water leads to poor absorption capacity of the gastrointestinal tract, which will cause indigestion and heart burden.
5. When you are thirsty, drink less saliva, stop for a while, or drink some light salt water first.
6. Don't drink a lot of water when eating, which will lead to the decrease of gastric acid concentration, which is not conducive to food digestion and absorption.
7. Drinking a glass of cold boiled water on an empty stomach in the morning is good for your health. These are all scientific ways to drink water. I wish you the best of health!