Externalize it — put the information, the time, and the problem in front of you

Because ADHD is a performance problem — the brain fails to act on what it knows — internal intentions, an internal sense of time, and mental problem-solving all leak away under distraction. The fix is to externalize them and place them at the point of performance, the spot and moment where the behaviour is needed.

Three concrete moves. First, externalize the knowledge: write down what you must do right now and keep it physically visible at the workspace — notes, lists, sticky reminders, any physical cue in your line of sight — rather than trusting it to working memory. Second, make time physical: put a clock, countdown timer or counter where you can see it while you work, so the broken internal clock is replaced by something you can literally watch tick down. Third, make problems physical and manipulable: when holding a problem in your head and turning it over mentally stalls, take its parts out of your head and into your hands — counters, tokens, a number line, movable pieces you can rearrange — and solve it externally. The common thread is that an external stimulus guides ADHD behaviour far more reliably than an internal one, so anything important should be made into something you can see, touch, and move at the moment you act on it. (Framing: Russell Barkley.)