ADHD and Lying

A frequent conversation that I have with parents in parent coaching sessions, is the challenge of navigating why their child with ADHD might be lying.

Whilst all children can lie, for many reasons, including:

• To avoid trouble or punishments
• To protect their self-esteem
• Their developmental stage affecting their understanding of lies
• To gain attention or impress others
• Due to impulse control difficulties meaning they react without thinking through
• Poor working memory affecting their recall
• To avoid overwhelm
• To maintain control
• To protect the feelings of others
• It avoids conflict
• To avoid shame
• Storytelling slips into exaggeration

ADHD and lying

When a child with ADHD lies, it can come from different motivators and causations. Children with ADHD often lie as a coping mechanism, not because they’re manipulative, but because of how their brains manage impulsivity, fear of consequences, memory, and emotional regulation.

Impulsivity and Poor Inhibition – Many ADHD children speak before thinking blurting out what feels safest or easiest in the moment. Their brain prioritises avoiding discomfort over accuracy.

Fear of Punishment or Shame – Repeated experiences of being told off, corrected, or failing lead to anticipatory anxiety. They lie to avoid criticism, conflict, or punishment, a self-protective response.

Emotional Regulation Difficulties – When they’re anxious, overwhelmed, or afraid, they can enter a defensive state (fight, flight, freeze, or fawn). Lying is not strategic; it’s reactive.

Impaired Cause-and-Effect Thinking – Executive dysfunction makes it hard to foresee consequences of lying. In the moment, avoiding discomfort feels like success, the future fallout doesn’t register.

Seeking Stimulation and Novelty – Dopamine deficiency also drives boredom intolerance and sensation-seeking. Some children with ADHD exaggerate stories or lie to create excitement or hold attention. The storytelling itself becomes a way to boost dopamine — it’s interesting, dramatic, and emotionally charged.

Dopamine and Impulse Control – Dopamine helps regulate the prefrontal cortex, the part of the brain responsible for planning, inhibition, and reflection. When dopamine is low, the “pause-button” function is weak. The child can’t stop themselves long enough to consider truth, consequences, or alternatives, the lie “slips out” before they even realise.

Dopamine and Instant Gratification – ADHD brains are wired for immediate feedback, they crave
fast results or reward. Telling the truth and facing consequences offers no immediate reward. Lying
provides instant gratification: Avoiding conflict or shame.

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© Nicky Edwards – All Rights Reserved

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