Anger is rarely just about temper. It is usually the pressure of unspoken...

https://astro-wiki.win/index.php/Is_Anger_Management_Worth_It_If_I%E2%80%99ve_Never_Been_Violent%3F

Anger is rarely just about temper. It is usually the pressure of unspoken stress building up under the surface. You might notice it as a clenched jaw, tight shoulders, or nights spent staring at the ceiling