Badminton, like tennis, is a racket sport that is played by either two players or two teams of two players each. The object is for you or your team to get to 21 points first. You score a point whenever you successfully serve the shuttlecock and your opposing team commits a fault, which means that the team fails to appropriately return the shuttlecock.
Assuming one cares for their teeth by brushing regularly, saliva may smell bad because there are millions of bacteria present in the mouth. Bad smelling saliva or breath can be indicative of a tooth abscess, or a systemic illness such as diabetes.
Saliva is important because it plays a vital role in maintaining your oral health. It helps to build and maintain both the soft and hard tissues in your mouth. When you have a reduced flow of saliva, you can suffer from oral health problems, such as tooth decay or oral infections.