It is not just the way he is

There is a moment, in many of these houses, when everyone already knows. It is not during the argument. It is before it.

Someone wakes up a little earlier than they needed to and lies there, listening. The noise from the kitchen says something. Whether the cup was placed in the sink or dropped into it. Whether the bedroom door opened slowly. Whether he said good morning or walked straight down the hallway. From that point the whole day reorganises itself: people speak less, the conversation about school gets postponed, so does the overdue bill, so does the car that needs servicing. Everyone waits for it to pass.

And it almost always passes. Some days, sometimes a few weeks, and the house goes back to normal. He is in good spirits, attentive, full of plans. He wants to travel, sorts out three things in a single Saturday, rings friends he has not spoken to in months. Everyone relaxes. Nobody mentions what happened, because mentioning it would be starting it again.

When a family describes this in my consulting room, there is a sentence that tends to come right afterwards. It works as an explanation and as a full stop at the same time: “he has always been like that. His father was exactly the same.”

That sentence is not carelessness. It is the result of twenty or thirty years of close observation, made by people who know that person better than any doctor ever will. And part of it is true. There is such a thing as family resemblance. There are people who are simply more intense, more reactive, harder to live with — and that is not an illness. It never was.

The problem is what the sentence does afterwards. When something becomes temperament, it stops being a question. It becomes weather. It becomes landscape — like living near a busy road and, at some point, no longer hearing the traffic.

Perhaps you recognized your own house in that description. Or perhaps you thought of a brother, a father, someone you have lived alongside for many years. It may even be that you recognized something in yourself. If so, either way, it is worth saying before anything else: there would be nothing wrong with only noticing it now. Long familiarity is exactly what makes this kind of thing invisible. Nobody can see the shape of a curve from inside it.

What temperament explains well

Temperament is a constant. It is the way of reacting that a person has always carried, and that shows up in roughly the same form at twenty, at forty and at sixty. Someone with a short fuse still has a short fuse. Someone anxious stays anxious. Circumstances change the intensity, life teaches them to hold it in a bit more or a bit less — but the axis is the same.

Temperament also has no beginning and no end. It does not arrive on a Tuesday and leave ten days later. It is there at the birthday party and at the funeral, in the good stretch at work and in the bad one.

And temperament, even when it is difficult, tends to be predictable for the people around it. The family knows what sets it off, knows what settles it, knows what to avoid. There is an unwritten manual, and it works reasonably well.

That describes a great many households. It probably describes most households where somebody is called “difficult”. And in most of them there is nothing to diagnose.

What tends to be different

What makes some cases something else is not the intensity. It is not how loudly the person shouts, or how impatient they are. It is the shape.

The first difference is that it comes in blocks. It is not a way of being spread evenly across the years: these are periods with an outline, starting at one point and ending at another, lasting far too long to be a bad day. When the history is put back together slowly, a pattern almost always appears — and the family, which had only ever seen scattered incidents, starts to see the sequence.

The second is that, inside those blocks, the person is unlike themselves. It is not an exaggerated version of who they have always been. It is someone the family looks at and thinks, “that is not him”. Someone who sleeps far less and does not seem tired. Someone speaking at a rhythm that is not his. Someone deciding in two days things he always took months to decide. Or, at the other extreme, someone who disappears inside himself in a way that does not fit the person he is.

The third is the one almost nobody brings to the appointment: the good stretch is part of the picture too. Families describe the bad stretches in detail and skip over the others, because the others were a relief. That was when he became himself again, when the house could breathe. Except that sometimes it is precisely there that a car gets bought without discussion, that a serious falling-out with a business partner happens, that money nobody had gets spent. When that shows up, it is not a run of poor choices. It is something else, and it has a name.

And there is a fourth, quieter one: between one block and the next, the person comes back. Back to the starting point, to the usual way of being, to a life that can be shared. It is that return that separates a mood pattern from a difficult personality — because personality does not come and go. Personality stays.

Why families take so long

They take so long because the two things look alike close up and only separate at a distance. From inside daily life, a bad week is a bad week. You would need to see ten years all at once to make out the shape, and nobody has that view of their own house.

They take so long because the hereditary explanation is comfortable. If his father was the same, then that is simply how it is, and there is nothing to be done — which hurts less than the alternative.

They take so long, too, because families try, before anything else, to sort it out with the resources they have — and that is what anyone would do. There are conversations. There are demands. There are agreements. There are threats to leave, and sometimes someone does leave, for a few days. Each of those attempts works a little, which is exactly what gets in the way: a partial result keeps alive the idea that this is a matter of willpower, of effort, of getting the tone of the conversation right. If nothing had ever worked, somebody would have started wondering sooner.

And they take so long, above all, because the person in question is rarely the one who seeks help. In the bad stretches he tends to think the problem is life, work, the family. In the good stretches he feels better than ever and sees no reason to consult anyone. That is why, most of the time, the first person to wonder is someone else — and why the account the family gives carries real clinical weight. It is not a supplement to the story. It is part of it.

One caveat that seems important to me

None of this is here to turn a difficult person into an ill one. There are irritable people, there are unstable people, there are worn-out marriages, there are households that became unbearable for reasons that have nothing to do with medicine. Recognizing a pattern is not the same as being sure of one, and reading something on the internet is not an assessment.

What can honestly be done is to reopen a question that was closed too early. Not “is he bipolar?”, which is a question not even the best doctor answers in a corridor conversation. Something more modest: has this thing we call his temperament ever actually been looked at, or was it just gradually accepted?

There is a cost to closing that question too early, and it is not an abstract one. When something is accepted as temperament, it stops being followed. The years pass, the consequences quietly accumulate — a job, a debt, a relationship at a time — and the family only looks at the whole again when something bigger happens. That is why it would be worth reopening the question before then, even without any certainty at all. Reopening a question commits nobody to anything.

A serious assessment of this takes time. It involves rebuilding the timeline of an entire life, which rarely fits into a short appointment, and it almost always involves listening to the people who live with the person — because there are things somebody genuinely cannot see in himself. It is not a test and it is not a questionnaire. It is patient reconstruction.

If you have read this far

You do not have to conclude anything today. You do not have to decide whether it has a name, you do not have to take anyone anywhere, and you do not have to raise it over dinner.

Perhaps it is enough, for now, to leave the question open rather than closed. If at some point you want to understand better what you have been watching over all these years, there are people who will listen to that kind of story in full, with the time it asks for.

Related reading

• The treatment for depression that made everything worse
• He stopped taking it because he was finally well
• Five psychiatrists, ten years, no answer

Do the mood swings at home seem to go beyond temperament?

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Dr. Leonardo Sodré is a psychiatrist and psychotherapist in Brasília, Brazil (CRM-DF 14.206 · RQE 14.761). He holds a PhD in Psychiatry from UFRGS and teaches at the University of Brasília School of Medicine. This content is informative and educational and does not replace individual assessment, diagnosis or treatment.