The main reason why you can’t smell your own breath is because the receptors in your nose become accustomed to the same smells over time. This is known as olfactory fatigue or adaptation. When you’re exposed to a certain smell for a long time, your nose becomes used to it and you’re unable to detect it. This is why you’re able to smell other people’s breath but not your own.

How can I tell if my breath stinks?

The most reliable way to tell if your breath is bad is to ask someone you trust to give you an honest opinion. If that’s not possible, you can try licking the back of your hand and then smelling it. If it smells bad, your breath may be bad as well. Additionally, you can try brushing your tongue and flossing regularly, as these can help reduce bad breath.

Can my breath smell without me knowing it?

Yes, it is possible for your breath to smell without you knowing it. This is because the smell of your breath is affected by what you eat and drink, as well as bacteria that can accumulate in your mouth. To prevent this, you should maintain a good dental hygiene routine, which includes brushing your teeth twice a day and using floss to remove food particles from between your teeth. Additionally, drinking plenty of water can help to flush out bacteria and food particles, and using mouthwash can also help to reduce bacteria and freshen your breath.