Getting Things Doneadults
Why can I do something for six hours but not start a five-minute task?
The size of a task and the difficulty of starting it are almost unrelated. Here's what's actually happening in the gap.
Sian Trombley
9 min read
Updated JUL 14, 2026
You know it needs doing.
You know it probably won't take long.
You've thought about doing it fourteen times today.
And somehow you are now reorganising a drawer that nobody has opened since March.
This is one of the most disorienting parts of ADHD, because it looks — from the outside and often from the inside — like a motivation problem. You want the thing done. You can picture it done. You can even feel the relief of it being done. And still, nothing moves.
Starting is a separate skill from doing
Executive function research tends to separate the ability to sustain effort from the ability to initiate it. They use different supports and they fail in different circumstances. Plenty of people can work for hours once underway and still find the first thirty seconds nearly impossible.
That's why advice built around discipline tends to bounce off. It's aimed at the wrong part of the sequence. The problem isn't the six hours. It's the eight inches between not-started and started.
Activation depends heavily on how interesting, urgent, novel or socially present a task feels in the moment — not on how important you know it to be. Importance is an abstract fact. Your nervous system responds to signals that are much more immediate than that.
Why the small task is often the hardest one
Big projects come with structure. Someone has usually already decided what the first step is. A five-minute task frequently has no visible first step at all — you have to invent it, and inventing it happens in working memory, which is often the exact resource that's already stretched.
So the email that takes four minutes to write can take eleven days to send, because the four minutes were never the barrier. The barrier was deciding what the first sentence is while holding the rest of the day in your head.
This is also why the task often gets done instantly at the point of crisis. Deadline pressure doesn't make you more capable. It temporarily supplies the urgency your brain was waiting for.
What actually helps
Reduce the number of decisions between you and the beginning. Open the document the night before. Leave the form on the table. Put the shoes in the doorway. If the environment holds the first step, you don't have to.
Shrink the commitment rather than the task. "Open it, don't finish it" works because it removes the implied contract that starting means completing.
Borrow someone else's attention. Body doubling — working alongside another person, in the room or on a call — provides external activation without requiring you to generate it internally.
None of these make you more disciplined. They make the start cost less. That's the point: don't try harder, make it easier to do.
A note on self-blame
Most people arrive at this pattern with years of evidence that they are lazy, and almost none of the evidence is actually about laziness. Lazy people don't spend four hours dreading a nine-minute task. That dread is effort. It's just effort with nowhere useful to go.
Understanding the mechanism won't dissolve it. But it changes what you reach for next — and reaching for a smaller entry point works considerably better than reaching for more willpower.
Don't just try harder. Make it easier to do.
This article is general educational information, not therapy, diagnosis or individual medical advice. If something here matters for your situation, a qualified professional who knows you is the right next step.
