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If you are asking about the word "metaphysics," it refers to a branch of philosophy that explores concepts that go beyond the physical world, such as the nature of reality, existence, and the relationship between mind and matter. It deals with questions that cannot be answered by empirical evidence or scientific methods.

There are a few possible reasons for this. One reason could be that you have been eating a lot of foods that are known to cause bad breath, such as garlic or onions. Another reason could be that you have poor oral hygiene habits, such as not brushing and flossing regularly or not cleaning your tongue properly. Additionally, certain medical conditions can cause bad breath, such as dry mouth, gum disease, or respiratory infections. If you are concerned about your breath, it is best to consult with a dentist or doctor to determine the cause and find a solution.