Why Do I Have Difficulty Shifting Between Tasks? 

If you live with ADHD, switching from one task to another can feel like hitting an invisible wall. You might hyperfocus on one activity but struggle to move to the next, even if you know it is important. This difficulty comes down to how ADHD affects cognitive flexibility, the brain’s ability to adapt, redirect attention, and reset focus between tasks. 

According to the Royal College of Psychiatrists’ Adult ADHD Guidance (CR235, 2023), this challenge is part of executive dysfunction, the same system that controls planning, prioritisation, and working memory. 

The Brain and Neurochemistry Behind It 

Neuroimaging research published in Frontiers in Human Neuroscience (2018) shows that ADHD involves reduced activation in the prefrontal cortex (PFC), anterior cingulate cortex (ACC), and basal ganglia regions responsible for mental shifting and self-regulation. Dopamine and norepinephrine imbalances in these areas can slow focus transitions and make it harder to disengage from one task to start another. NHS guidance explains that this “mental rigidity” is neurological, not behavioural, meaning willpower alone won’t overcome it. 

Evidence-Based Strategies That Help 

NICE guidance (NG87) and RCPsych recommend a multimodal approach that combines medication, therapy, and structure to improve task-switching and focus control: 

Medication  

Stimulants (like methylphenidate or lisdexamfetamine) and non-stimulants (like atomoxetine) increase dopamine and norepinephrine availability in the PFC, improving focus and adaptability. 

CBT and Metacognitive Therapy  

As noted by Harvard Health, CBT helps you recognise unhelpful thought patterns and develop strategies for smoother transitions. 

Mindfulness and Attention Training  

Evidence from PuMed (2016) and the Cleveland Clinic suggests mindfulness strengthens inhibition control, helping the brain let go of one task before starting another. 

Coaching and Structure  

ADHD coaching and tools like task timers, checklists, and environmental cues can externalise transitions, providing the nudge your brain may need to move forward. 

Private ADHD services such as ADHD Certify also offer structured post-diagnostic coaching and medication reviews to help people build flexible task management routines in line with NICE guidance. 

Takeaway 

Difficulty shifting between tasks is not about poor discipline; it is how ADHD affects the brain’s flexibility and reward systems. With the right mix of medical support, behavioural tools, and structure, it is possible to train smoother transitions and regain control of your focus and time.