Anger usually acts as a pressure valve for stress you haven't been able to...

https://www.foxtrot-bookmarks.win/anger-usually-starts-as-built-up-pressure-that-has-nowhere-to-go-you-might

Anger usually acts as a pressure valve for stress you haven't been able to release. When you carry the weight of work or home life, it shows up as a tight jaw, knotted shoulders, or broken sleep