10/05/2026
ADHD Series – Week 6: ADHD and Co-Occurring Conditions
Many people with Attention Deficit Hyperactivity Disorder (ADHD) experience more than just attention or executive functioning difficulties.
ADHD commonly occurs alongside other emotional, behavioural, and developmental conditions, often referred to as co-occurring conditions or comorbidities.
Common co-occurring conditions include:
Anxiety
Many individuals with ADHD experience:
• Excessive worry
• Overthinking
• Feeling overwhelmed
• Difficulty switching off mentally
Depression
Living with ongoing stress, overwhelm, or self-criticism can contribute to:
• Low mood
• Reduced motivation
• Feelings of failure or frustration
Autism spectrum conditions
Some individuals experience both ADHD and autism-related traits, including:
• Social communication differences
• Sensory sensitivities
• Need for routine or predictability
Learning disorders
Difficulties with:
• Reading
• Writing
• Maths
may also occur alongside ADHD.
Sleep difficulties
Many individuals with ADHD experience:
• Difficulty falling asleep
• Restless sleep
• Trouble waking in the morning
Poor sleep can also worsen attention and emotional regulation.
Why this matters
Co-occurring conditions can:
• Affect how ADHD presents
• Increase emotional distress
• Impact school, work, and relationships
• Influence treatment recommendations
This is why ADHD assessments should consider the whole person, not just attention difficulties alone.
Common myth:
“ADHD explains everything.”
Reality:
Sometimes ADHD is only one part of a broader picture.
Important message
Many people with ADHD have spent years feeling:
• “lazy”
• “disorganised”
• “not good enough”
Understanding co-occurring conditions can help people make sense of their experiences and access more appropriate support.
Next week:
We’ll explore treatment and support options for ADHD, including therapy, lifestyle strategies, and medication.
Question:
What’s something you think people misunderstand about ADHD and mental health?
For more information, please check out my webpage:
www.cleverpsychology.com.au