1 / 8According to doctors, if you don't brush or clean your teeth properly it can lead to bad breath. 2 / 8Dry Mouth – Saliva washes away the bacteria that cause bad breath, and because when you sleep, less saliva is produced in the mouth and that's the reason in the morning our mouth produces bad breath. 3 / 8Your eating habits affect your breathing. This problem can arise due to the consumption of things like onion and garlic in dinner. That's why it is important to brush before sleeping at night.4 / 8Many people suffer from acid reflux, a condition in which there is no digestion after eating this often leads to bad breath.5 / 8Don't always use mouthwash after brushing - mouthwash will make your breath smell fresh for a short time, but it can also dry out your mouth. Most mouthwashes contain alcohol, and this affects the natural production of saliva in your mouth.6 / 8This breath-freshening method originated in India and has been proven to whiten your teeth and improve your dental health. Take a tablespoon of oil and swish it around your mouth for 15-20 minutes and spit it. This will surely help. 7 / 8Many people cannot imagine starting the day before having their morning coffee. This may be responsible for bad breath in the morning. Coffee has a drying effect, causing the body to produce less saliva.8 / 8Like your teeth, your tongue can also contain bacteria that make your breath smell bad. If you don't brush your tongue, the bacteria in your mouth will multiply, causing you to have bad breath.