02/22/2026
Research and clinical experience show that many individuals with ADHD experience significant frustration when plans change unexpectedly.
This reaction is often linked to executive functioning differences, particularly challenges with cognitive flexibility—the ability to shift thinking and adapt to new situations.
Many people with ADHD mentally rehearse upcoming events in detail as a way to feel prepared and reduce anxiety; sudden changes can dismantle that mental framework, requiring substantial effort to rebuild.
In addition, emotional dysregulation—a common feature of ADHD—can intensify the reaction, making a “small” change feel overwhelming.
Transitioning between tasks or mental states can also be taxing, so abrupt shifts may create a sense of resistance or shutdown.
While this pattern is common, it varies by individual, and coping strategies such as building buffer time, using visual planners, and practicing regulation skills can help manage the impact.