Cause of bad breath The first is due to food residues fermenting in the mouth and forming decaying matter. The second is inflammation in the mouth, such as periodontitis, gingivitis, etc. The third cause of bad breath is often referred to as “intestinal heat, stomach fire”. Who are more likely to cause bad breath? 1, easily excited, angry or depressed people, often occur bad breath. Such as: women in the month and also more likely to occur bad breath. 2, bad breath is particularly serious after waking up in the morning, is when saliva secretion is reduced, the tongue and cheek muscles are basically at rest, which can easily lead to bad breath. 3, the formation of bad breath plays an important role,, garlic, animal fats and other foods can cause bad breath; some patients taking certain drugs will also produce bad breath, such as dimethyl sulfide, quinine and antihistamines. 4, inflammation of the road may lead to halitosis, such as esophagitis, chronic gastritis, chronic enteritis, ulcerative colitis, etc., the digestive tract energy obstruction, due to retention of contents, reflux easy to emerge halitosis; constipated patients, because of fecal odor, ammonia, hydrogen sulfide and other things, but also due to breath reflux to, resulting in halitosis. 5, anxiety can also lead to bad breath, due to anxiety and bad breath patients are mostly white-collar, are generally capable, good job performance of people, they are more demanding of their own, the spirit of long-term in a state of tension, relatively irregular life, low quality sleep. However, through a period of psychological intervention and regulation, it can be eased over. 6, liver and yin deficiency is also the cause of bad breath, this situation is mostly seen in older people, because the elderly liver and kidney yin deficiency is more common. There are also some people who are themselves Yin deficiency. People with yin deficiency, the body’s yin loss, yin can not restrain yang. When water does not control fire, it will produce internal heat, heat steaming, bad breath is inevitable. These people also have the symptoms of fear of heat and irritability. 7, with, drinking and other bad habits, smoking, drinking can not only excite the human nervous system, but also make the oral cavity anaerobic bacteria active. In social situations, people often encounter “regular bad breath”, and more powerful than the usual smell, lasting longer. This social bad breath is not all caused by food, sometimes with the person’s life stress, psychological state related. 8, tongue may also cause bad breath, you can use the tongue brush method, which is to brush the back of the tongue with a toothbrush in the morning when brushing your teeth by the way. Or use the biphasic gargling method: that is, alternate gargling with water and edible before bed, note: gargling, to tilt your head so that the mouthwash reaches the mouth after the best, this method can make the residual mouthwash in the mouth continues to work during sleep.