Anger isn’t just a temper problem. It is usually built-up pressure from stress...

https://smoothdecorator.com/the-snap-why-youre-losing-your-cool-and-how-to-actually-stop/

Anger isn’t just a temper problem. It is usually built-up pressure from stress at work or home. You might notice it as a clenched jaw, tight shoulders, or nights spent staring at the ceiling