If I brush my teeth in the morning and fast for 7 hours, my breath still smells kinda ok. But if I brush my teeth before bed then wake after 7 hours, it’s less pleasant. What’s happening to be different?

Question

If I brush my teeth in the morning and fast for 7 hours, my breath still smells kinda ok. But if I brush my teeth before bed then wake after 7 hours, it’s less pleasant. What’s happening to be different?

In: 6

Answer 1

Brush before bed, but not RIGHT BEFORE going to bed. Brushing makes your mouth dry so brush a few hours before bed and your saliva production will restart and give you enough to keep most bacteria at bay. Bacteria love warm and dry and so going to bed with essentially dry mouth will explode bacteria production.