Why Routine Works Differently in Autism and ADHD

Whatever you read online about ADHD, you run into the same sentence: build a routine. Whatever you read about autism, again the same sentence: routine is important.

The same word is written in both places, but they are not talking about the same thing. This made me hold it by the wrong end for years: I applied to myself the routine advice written for autism and could not understand why it did not work.

I do not have an autism diagnosis, and I am not going to give myself one. But separating the relationship these two topics have with routine was one of the things that helped me most when building my own order.

Routine exists in both but its job is different

Before simplifying, let me put one clear sentence.

In autism routine is not a tool, it is a ground. It produces predictability. Knowing what will happen lowers the amount of information that has to be processed at the same time. In the DSM-5-TR, under the heading of restricted and repetitive patterns, insistence on sameness, adherence to routines and ritualized patterns of behavior are explicitly listed (American Psychiatric Association, 2022). That is, this is something that sits inside the diagnostic criteria.

In ADHD routine is a goal. It is wanted and cannot be established. When it is established, another problem starts: the moment it becomes familiar, it loses its interest and motivation drops. I call this novelty wearing off, and the whole routine discussion in ADHD revolves around it.

This is why the same advice gives different results on the two sides. The sentence "get up at the same time every morning" is a carrying ground for one person, and a rule abandoned by day three for another.

What happens when it breaks

This is where the distinction shows most clearly.

On the autism side, unexpected change is reported as more than a loss of comfort. When the plan breaks, what is lost is not the plan but the mental preparation made according to that plan. The new situation has to be built from scratch, and this rebuilding is expensive. For this reason the reaction can come at the moment and can look disproportionate from the outside.

On the ADHD side, the first reaction is often "okay, fine." The problem comes later: the switch to the new plan cannot be made, the remnant of the old task stays in the mind, the day cannot be pulled together. We call this difficulty with transitions, and in ADHD it comes not from a lack of flexibility but from the cost of the transition.

So both struggle when the plan changes, but one struggles at the door and the other in the corridor.

There is an everyday test of this distinction. Look at who changed the plan. On the ADHD side, when you change the plan yourself there is usually no problem, it even feels relieving; novelty is itself a reward. On the autism side it does not matter much who changed the plan, because the problem is not in authority but in the established preparation becoming invalid. When you break a plan you built yourself, the same rebuilding is required.

There is also the matter of size. Someone looking from the outside judges by the size of the reaction and thinks "all this for such a small change?" But the size of a change is measured by how much of the preparation it invalidates; a clock shifting by one hour can require rebuilding everything that was set up for that day from the start.

Monotropism: why letting go is so hard

One of the concepts that tries to explain the insistence on routine on the autism side is monotropism.

Murray, Lesser and Lawson (2005) proposed that the way attention is distributed in autism is atypical and flows intensely into a small number of channels of interest. According to this framework, the restricted pattern of interest is not a deficit but the natural result of how attention works.

The counterpart of this concept for routine is this: while you are inside a task, stepping outside that task does not mean only shifting your attention, it means leaving the channel you entered. Because leaving is expensive, transitions and sudden changes become disproportionately difficult.

This concept has been widely adopted within the community and is still debated as a theory; it is not a diagnostic criterion but an explanatory framework. But it is useful for explaining why routine is not a whim.

The real problem of routine on the ADHD side

This is the place where I can speak from my own side.

I do not struggle with failing to establish a routine, but with failing to sustain the routine I established. The establishing part is easy and even enjoyable: a new notebook, a new app, a new chart. The problem starts on the fourth day.

I gather the reasons under a few headings:

• The novelty wears off. What was interesting on the first day becomes invisible by the third. In ADHD a large part of motivation comes from interest and novelty.
• Time blindness. Routine is tied to the clock, and the clock does not stay clear in the mind. Time blindness rots the routine from the inside.
• When one day is missed, it is all over. A single hiccup gets the whole system thrown away. The name of this is all-or-nothing thinking, and it is the most frequent cause of death of routines.
• The reminder becomes invisible. A note standing in the same place becomes part of the wall after two weeks.

I wrote in detail how I tried to rescue routine in the article how to build a routine in ADHD. The short version: in ADHD a routine does not stand on its own unless it is supported from the outside.

There is also a frequent mistake: building the routine too big. A seven-item morning routine is a source of pride on the first day and a list of debts by the fourth. The routines that hold in ADHD are usually the ones that are embarrassingly small. A three-item morning routine can last two months, a seven-item one a week.

When both are in the same person

Here a picture emerges that looks, from the outside, like a complete inconsistency.

The same person is tense when a plan breaks but is also suffocated by sticking to the plan. They defend the system they built and abandon it at the same time. Sitting at the familiar table in the familiar cafe is restful, yet going to the same cafe for three weeks becomes unbearable.

The review by Antshel and Russo (2019) explains that this co-occurrence is not exceptional and that it complicates decisions about support. Because every system built for a single direction batters the other side. A rigid schedule soothes the autism side while extinguishing the ADHD side; a completely free day soothes the ADHD side while leaving the autism side in uncertainty.

I covered this picture in detail in the article on AuDHD.

A setup that takes both sides into account

The formula I have seen work is this: keep the skeleton fixed, leave the content variable.

You can build this in a few concrete forms:

• Time fixed, content free. "Going outside every morning at nine" instead of "a walk every morning at nine." The container stays the same, what you put in it changes.
• Order fixed, duration free. Build the morning routine in the order of its steps, and leave free how long the steps will take. The order gives predictability, the free duration lifts the pressure.
• A menu approach. Instead of a single dish for dinner, a fixed menu of three options. There is choice but not an endless one.
• Announce the change in advance. Even to yourself. Saying the sentence "tomorrow the schedule is different" a day before prevents the preparation from collapsing.
• Let one area never change. A corner of the house, a meal, a time slot. A completely fixed island makes the movement of everything else bearable.

What saves a routine is usually not more discipline. It is separating in advance what will stay fixed and what will move.

When interfering with someone else's routine

This part is for the people close to you.

Changing a plan with good intentions can have a bigger effect on the other side than you expect. The distance between "let me make a surprise" and "I broke their preparation" is very short.

A few practical things: say the change as early as possible, say the reason too, make the new plan concrete (time, place, duration), and do not ask "that's not a problem, is it?" This question pushes toward a positive answer even when the answer would be negative.

And there is the matter of surprises. A surprise means deliberately preventing preparation, and for this reason its being well-intentioned does not make it cheaper. If you want to make a surprise, announcing the frame and hiding the content is a good middle way: the sentence "on Saturday evening at six we are going somewhere, it will take three hours, it won't be crowded" both makes preparation possible and protects the surprise.

I went into more detail on this side in the article being close to someone with AuDHD.

Its counterpart at work and at school

In professional life the routine matter is usually discussed under the heading of "flexibility," and this heading comes up incomplete for both sides.

Accommodations that work for the autism side: sharing the meeting agenda in advance, reducing sudden meeting calls, giving notice of changes in writing, a fixed desk.

Those that work for the ADHD side: breaking deadlines into pieces, reminders from outside, a visible timer, a written job description.

If both are present, the whole list is needed, and this explains why a single template is not enough. I wrote the arrangements at the workplace in the article ADHD and accommodations at work.

For my part

Things got better when I stopped seeing routine as a test of character. The schedule I built for myself in the period when I was writing my thesis lasted ten days, and I remembered those ten days as a failure. Looking now, what I see is this: the schedule was not for me, I was not for the schedule.

What I use now is very simple. A skeleton where the morning time is fixed, the order of the work is fixed, and what the work is stays free. When I get bored I change the content, I do not change the skeleton.

I covered more generally how the two topics diverge on routine in the article are ADHD and autism the same thing, and why transitions are expensive in the article executive functions in autism and ADHD.