Why is diabetes more difficult with ADHD? The executive function link

How do difficulties with executive function impact diabetes management?

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Alexandra Cristina Cowell
Medically reviewed by Alexandra Cristina Cowell Clinical Support

Reading time: 3 min

Uploaded on: January 23, 2026

Executive function is your brain’s set of management skills. It helps you plan, organise, remember things, and control your impulses.

For people with ADHD, these processes don’t always work as smoothly, which can make day-to-day diabetes care especially tough.[1]

Research shows that ADHD is linked to both type 1 and type 2 diabetes.[2][3] People who live with both ADHD and diabetes often find it harder to stick to treatment routines, leading to higher blood sugar levels and more complications.[4]

Organisation and planning

Managing diabetes involves constant planning, like:

  • Preparing medication
  • Booking appointments
  • Carrying supplies
  • Meal planning
  • Monitoring glucose levels

ADHD can make organising these steps harder. Missed check-ups, forgotten prescriptions, or unplanned meals are all common challenges that can affect how you manage your diabetes.[4]

Working memory

Working memory is like your mental post-it notes. It’s the short-term info our brain pulls up to get a task done.

With diabetes, you might need to remember if you already took your insulin, when you last ate, or how your blood sugar was trending.

For people with ADHD, these details can slip easily, leading to missed doses, double dosing, or monitoring levels inconsitently.[3]

Impulse control

People with ADHD often experience impulsivity - making decisions in the moment without thinking them through.[5] This can affect diabetes management in a few ways:

  • Grabbing unhealthy snacks without meal planning.
  • Forgetting to check glucose levels before you eat.
  • Accidentally skipping medication because something more immediate grabbed your attention.

Research suggests that people with ADHD are more likely to develop type 2 diabetes, partly because impulsivity makes healthy lifestyle choices harder to sustain.[3]

Emotional regulation

Diabetes is demanding. ADHD can make emotional ups and downs more intense, which can lead to frustration, burnout, or avoidance when things feel overwhelming.[6] 

Studies in adults with type 1 diabetes show that people with ADHD symptoms are more likely to struggle with poor blood sugar control and higher rates of depression.[3]

Time management

Diabetes care is time-sensitive. You need to take insulin doses at the right times, track your meal spacing, while regularly checking your levels.

For people with ADHD, losing track of time or underestimating how long things take can lead to delays, which can then lead to missed doses, late meals, or skipped monitoring. Over time, these small lapses add up, affecting your overall health.

Back to:

Overview

Read next:

Challenges

Strategies for success

References:

  1. Team, A.E. (2023). Executive Function Disorder & ADHD | ADDA. ADDA - Attention Deficit Disorder Association.
  2. Ai, Y., et al. (2022). The relationship between diabetes mellitus and attention deficit hyperactivity disorder: A systematic review and meta-analysis. Frontiers in Pediatrics, 10.
  3. Garcia-Argibay, M., et al. (2023). The association between type 2 diabetes and attention- deficit/hyperactivity disorder: A systematic review, meta-analysis, and population-based sibling study. Neuroscience & Biobehavioral Reviews, 147, p.105076.
  4. Yanli Zhang-James, et al. (2025). Attention-Deficit/Hyperactivity Disorder Symptoms Are Common and Associated with Worse Glycemic Control in Adults with Type 1 Diabetes. Journal of Clinical Medicine, 14(10), pp.3606–3606.
  5. Centers for Disease Control and Prevention (2024). Symptoms of ADHD. Attention-Deficit / Hyperactivity Disorder (ADHD).
  6. Shaw, P., et al. (2014). Emotion Dysregulation in Attention Deficit Hyperactivity Disorder. American Journal of Psychiatry, 171(3), pp.276–293.

Reading time: 3 min

Uploaded on: January 23, 2026

Dr Daniel
Medically reviewed by Alexandra Cristina Cowell Clinical Support Registered with GMC (00001) January 23, 2026 Meet Alexandra Cristina Cowell
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Written by Focused Content Team
Last updated on February 11, 2026
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