Anger usually starts as built-up pressure that has nowhere to go. You might...

https://innovativemen.com/health-conditions/mental-health/anger-management-in-vancouver-whats-really-behind-the-frustration/

Anger usually starts as built-up pressure that has nowhere to go. You might notice it as a locked jaw, tight shoulders, or restless sleep. It is not just about losing your temper. It is about understanding what happens before the explosion