Should You Drink Water on an Empty Stomach in the Morning? 

(1) There is a rumor online that drinking water on an empty stomach in the morning can be more harmful than skipping breakfast. It is said that the bacteria present in the mouth, if consumed with water, can affect health. Is this true? 

(2) In reality, our mouths are naturally populated with various bacteria, viruses, and fungi, which form the oral microbiota.

Studies show that the oral cavity contains around 700 different species of bacteria, but these bacteria are generally harmless and do not pose a threat to our health.