Brush your teeth every day and still have bad breath? We've finally found the reason.

1. Food residue embedding: Although you brush your teeth every day, there are some corners in your mouth that are not easy to clean, such as the gaps between teeth, where food residues are extremely easy to accumulate. Normally, we may not be able to clean them up by brushing our teeth; over time, bacteria will breed and cause bad breath.
2. Oral diseases cause bad breath: dental plaque, tartar, periodontitis or caries can cause bad breath.
3. Indigestion: Irregular diet, overeating, or eating too much irritating and greasy food will cause indigestion, and gas will be reversed from the mouth, causing bad breath.
4. Smoking, a factor that makes smokers more prone to severe periodontal disease, and the lingering smell of cigarettes in the mouth mixes with other odors, resulting in a distinctive foul smell.
5. Diet, such as onions, garlic, spices, durian, and alcohol, can cause bad breath. However, naturally, these odors disappear when food is digested, absorbed, and excreted.
6. Diabetic patients also have bad breath problems, mainly because the blood sugar level in the body is unstable. If the blood sugar level is elevated for a long time, the antibacterial ability in the mouth will decrease, which will cause a large number of bacteria to grow in the mouth, causing bad breath.
7. Gastroesophageal reflux is a type of gastrointestinal disease that everyone is familiar with. When this type of disease occurs, it will cause food in the stomach and intestines to reflux, thus emitting a bad smell in the mouth. Therefore, many people cannot remove the abnormal bad smell in the mouth even if they brush their teeth every day, or even three times a day. If you have unexplained bad breath and a feeling of blockage in the throat, you should be alert that it may be caused by gastroesophageal reflux. It is recommended that you conduct relevant examinations in a timely manner.

1. Eat more fruits and vegetables. Saliva is your best "weapon" to fight bad breath. Eating more fruits and vegetables such as apples and carrots can help secrete a lot of saliva, which can not only moisten the mouth, but also remove food residues attached to the teeth or stuck in the teeth. In addition, they can also reduce toxins in the digestive system.
2. Drink a cup of warm water when you get up in the morning to regulate your stomach and intestines. Be sure to eat breakfast, and breakfast time should not be too late. The recommended breakfast time is 6:30-8:30 in the morning.
3. Before each meal, take more than ten deep breaths to help avoid bad breath.