b : a feeling of nervousness, excitement, or fear that is created in a movie, book, etc. 1  The dramatic tension was very satisfying. 2  The author resolves the tension too soon.
You should know, however, that brushing your teeth after eating can sometimes affect your tooth enamel. According to the Mayo Clinic, if you've consumed anything acidic, you should avoid brushing your teeth for at least 30 minutes. Foods containing citric acid, like oranges, grapefruits and lemons, weaken tooth enamel. Brushing too soon after eating them can damage the enamel in its weakened state.
By the way, brushing in the morning BEFORE eating will do your teeth more good than brushing after. That is because there will be in your mouth first thing, quite a large population of bacteria. Brushing will remove these effectively. So there will be many less of them to multiply whilst you are eating.