Doug Noll explains why anger lingers long after an incident ends. Your emotional chemicals fade in 90 seconds, but replaying the story in your head keeps retriggering your amygdala. Breaking the narrative loop is how you actually let it go.
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That is the story that keeps the emotion alive. And as I've said before, the half-life of any emotion is about 90 seconds. That's about how long the neurochemicals that provoke the emotion or promote the affective experience we call emotion lasts in the brain. After that, if you're still activated, it's because your thoughts are re-triggering the amygdala. So the internal narrative goes like, "I can't believe they did that. This always happens. Why do they say that about me?" Every repetition of that story fires the amygdala again. So emotional regulation is just not about managing it 90 seconds. It's about catching the narrative that follows and interrupting it before it runs. The moment you notice the story starting, stop. Label it outside yourself.