If you want to check if everything’s fine with your bowels, respiratory system, hormones, metabolism, kidneys, or teeth, then you will have to perform a super easy test for which you’ll need a teaspoon and a plastic bag. Take a bit of the upper layer of the surface of the tongue with the teaspoon. Try to take from the layers which are closer to the throat. Then wrap the spoon in a plastic bag, letting it stay for 60 seconds under strong light. The light will help bacteria growth, and the results will be more visible.
If you are healthy, then the deposits will be clean, but if there are a lot of strange colors and odor, than it may be an early sign of hormones, bowels, kidneys, liver, or respiratory system issues.
Once you get the test, you may visit a doctor who’ll examine what it is about. The test will detect whether you have bad breath, about which people are not aware. If there is a fruity aroma, then it may indicate ketoacidosis or a metabolic disorder which may cause diabetes development. If you experience an unpleasant odor which resemble ammonia, then it is possibly a kidney issue. But you do not have to panic immediately, as bad breath does not necessarily mean that you have an issue with your internal organs. It may be an issue with your tonsils, gums, teeth, or caries.