Webthe tannins cause saliva proteins to precipitate or turn solid; Leaving the mouth temporarily less able to lubricate itself and its food. Stress and anxiety can affect. Webthe sensation of mouthwatering is caused by the brain’s response to visual stimuli. When you see delicious food, your brain recognizes it as desirable, triggering the release of. Webserous saliva, on the other hand, is nearly all water, and that’s what floods into your mouth at the smell, sight, or thought of especially delicious food. Webexplore the physiology of salivation, the process of saliva production by the salivary glands. Learn about the anatomy and function of salivary glands, the composition of. Websome individuals have difficulty swallowing saliva and this can lead to it gathering in the mouth and throat which can cause drooling. The best way to reduce this.