The act of labeling an emotion distances you from it and gives you a moment to pause your reaction to it. It works for dealing with your own negative emotions, for responding to children in their meltdowns, and for dealing with everyone else. Plus, by saying “he” or “she” is feeling X emotion, you’re stating that someone else is feeling it, not necessarily yourself. Language becomes a barrier between the feeling and your thoughts and makes those feelings less overwhelming.
Source: How to Stop Other People’s Emotions from Bringing You Down