Émotions
Anger: a misunderstood emotion, yet a useful one
Anger is a universal emotion that signals a crossed boundary. How to tell it apart from a settled reactivity, without diagnosis or directives.

Anger gets a bad reputation. We learn early that it disturbs people and that it is better to hide it to protect relationships. Many people spend their lives trying to stop feeling it.
The problem is that it does not work. And it was never the purpose nature had in mind for it.
Anger is a basic emotion, universal. Every culture recognizes it, and the face it creates reads the same way everywhere on the planet. It serves a precise function. It signals that a boundary has been crossed or that a value has not been respected.
Its direction is what sets it apart from other emotions. Where fear makes you pull back, anger does the opposite. It pushes you forward and comes with a heightened sense of control over what is happening. It is the emotion that gives you the energy to speak up or to defend yourself in the face of injustice.
One distinction helps to make sense of it. Feeling anger and expressing it destructively are two separate things. The emotion itself has nothing pathological about it. What can cause problems is what you do with it.
Where things get complicated is when anger becomes a background state. Irritability colors your days without any clear trigger, and small everyday friction sets off reactions that are out of proportion. At that point, the emotion is no longer doing its job as a signal. It has been saturated by something else, like accumulated stress or an older pain disguising itself as irritation.
Understood properly, anger is first and foremost a signal. Learning to read it comes before any effort to silence it.
If what you are reading sounds like a state that has been settling in for a long time, or that is taking up too much space in your relationships, talking to a trained professional can help untangle what is hiding behind the irritation.