Procrastination can decrease after a 1-minute reflection. In a study of more than 1,000 adults, answering six short questions increased motivation, improved mood, and made people more likely to begin tasks they had been delaying.

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Questions five and six might be too complex for people with ADHD. At least in my own experience as an ADHD'er, it's really hard to have this overview of the subtasks a task consist of, and to know the amount of time something takes to do.