You are writing a complex report. You have five tabs open, and you are holding a massive web of connections in your head. You are finally, after hours of procrastination, making actual progress.
Then, your phone buzzes. It's a highly urgent 30-second text from your spouse asking what's for dinner. You reply: "Chicken." You put the phone down and look back at the screen.
The report is gone. You are staring at the words on the screen, but they look like hieroglyphics. The "feeling" of flow has completely evaporated. The specific thought you were holding in your brain just seconds ago has vanished without a trace. You try to stare at the screen to force it back, but it feels like trying to reconstruct a shattered pane of glass. After ten minutes of agonizing executive dysfunction, you sigh, open Twitter, and abandon the report for the rest of the day.
Neurotypical people can "pause" a task, hold the data in their background working memory, and "unpause" it after a brief distraction. The ADHD brain has no pause button; it only has 'Delete' and 'Restart.'
Because the dopamine required to initiate a heavy executive task is so rare, getting started is a miracle. An interruption doesn't just pause the work; it forcefully unplugs the machine from the miracle. You must treat interruptions not as minor inconveniences, but as lethal threats to your productivity.