08/18/2026
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A new long-term study published in the Journal of Clinical Psychiatry has proven to be an excellent next step in getting a better understanding of the disorder, showing that a lot of what’s commonly believed or assumed about ADHD is incomplete or just flat-out wrong.
Researchers studied 483 participants who were diagnosed with ADHD in childhood and continued to assess them for a period of 16 years. The study’s authors wanted to get a sense of how ADHD symptoms might change over time.
What the researchers found surprised them. In most participants, symptoms of ADHD fluctuated greatly over the years rather than staying consistent. What surprised them even more were the environmental factors that seemed to play a role in those fluctuations.
Researchers expected that greater life demands—like more responsibility at work, a heavier workload at school, major life changes, etc.—would exacerbate ADHD symptoms. What they found was the opposite.
It makes sense that a person who struggles with inattention or hyperactivity might have more trouble focusing when they have more “going on” and more distractions to pull them in different directions. It was a huge surprise to the researchers that, actually, people’s ADHD symptoms seemed to ease up when life got hectic.
“We expected the relationship between environmental demands and ADHD symptoms to be the opposite of what we found,” study author, professor, and clinical psychologist Margaret H. Sibley explained. “We hypothesized that when life demands and responsibilities increased, this might exacerbate people’s ADHD, making it more severe. In fact, it was the opposite. The higher the demands and responsibilities one was experiencing, the milder their ADHD.”