ADHD and Emotional Overload: Understanding What’s Really Going On

Written By jenni dunn

Supporting a teenager with ADHD can feel unpredictable, particularly when emotions run high or behaviour seems to change quickly.

In this Let’s All Talk Mental Health session with ADHD and Executive Function Coach Liz Ambler, from Green Thread Coaching and Foundations Child Therapy, we discussed how ADHD affects emotional regulation, decision-making and behaviour, and what can help parents respond in a way that supports both the moment and the longer term.

Understanding ADHD and emotional regulation

Emotional regulation is one of the brain’s executive functions. It’s the set of skills that help us plan, manage emotions, stay organised and respond appropriately. For teenagers with ADHD:

  • emotions can escalate more quickly

  • reactions can feel more intense

  • it can take longer to return to a calm state

When overwhelmed, the thinking part of the brain can go offline, and the emotional response takes over. This is why reactions can feel sudden or out of proportion, but they are not intentional.

What ADHD can look like day to day

Liz Ambler shared some of the common patterns parents might notice about their teens, that are often the things that cause the most friction at home:

  • starting things but not finishing them

  • forgetting instructions or losing track of tasks

  • struggling to get going, even when they want to

  • leaving things until the last minute

  • being easily distracted

  • appearing not to listen

  • emotional overreactions or quick mood shifts

  • avoiding tasks that feel overwhelming

  • losing or misplacing things

  • poor time awareness

  • inconsistency; being able to do something one day but not the next

The key shift for parents

The important takeaway here is that these behaviours are not about laziness or a lack of effort. They are linked to differences in executive functioning, meaning a young person may want to do something, but struggles with the steps needed to start, organise or complete it.

A helpful shift is moving from:
“Why won’t they do it?”
to
“What’s getting in the way?”

This small change often leads to more effective and supportive responses.

Why behaviour can feel reactive or intense

Parents may notice that emotions can build up and then come out all at once. This often happens at home, where teens feels safest.

Teens with ADHD may:

  • move quickly into fight, flight or freeze responses

  • struggle to pause before reacting

  • feel things more intensely, particularly around criticism or perceived failure

  • show avoidance behaviours when something feels too much

What looks like defiance is often overwhelm.

Responding in the moment

When emotions are running high, it’s rarely the right time to reason or problem-solve. What helps more:

  • keeping communication calm and minimal

  • allowing the emotion to pass

  • staying present without escalating

  • focusing on safety and containment

Parents often act as the “emotional brake” to help their teen gradually return to a calmer state.

Building longer-term support

Over time, small and consistent approaches make the biggest difference:

  • noticing patterns and early signs of overwhelm

  • building simple, repeatable strategies

  • supporting self-awareness without shame

  • having conversations outside of emotional moments

Helping teens understand that their responses are different, not wrong is key.

ADHD, puberty and emotional intensity

Hormonal changes during adolescence can heighten emotional responses further.

This can show up as:

  • bigger mood swings

  • increased impulsivity

  • stronger emotional reactions

  • more variability day to day

For neurodivergent teens, this can make the teen years feel more intense.

Exams, revision and ADHD

Exam periods can be particularly challenging, as they rely heavily on executive functioning skills. These include:

  • planning and prioritising

  • task initiation

  • working memory

  • time management

  • sustained attention

  • emotional regulation

Liz referenced the work of Peg Dawson, whose framework helps identify strengths and areas of difficulty within executive functioning.

Helpful approaches during revision include:

  • short, structured study blocks

  • using timers or prompts to start tasks

  • building in movement and breaks

  • focusing on starting small to reduce overwhelm

  • using external structure rather than relying on motivation

Many ADHD brains are interest-based, meaning urgency can help, but it also needs to be balanced with support and realistic expectations.

What to remember

Supporting a teenager with ADHD requires a slightly different approach and always remember:

  • ADHD behaviours are linked to executive function differences

  • in the moment, teens are often not able to think rationally

  • parents need to stay calm and reduce input

  • conversations should happen after the moment has passed

  • support is about understanding and scaffolding, not expecting instant change

  • skills are learned by repetition

Teens may not be able to think or respond rationally in the moment, so staying calm and keeping things simple can help. The real work often happens afterwards, when there’s space to reflect and build skills over time and through repetition.

Watch the full session

Watch the full session with ADHD and Executive Function Coach Liz Ambler on the Let’s All Talk Mental Health hub here.

Resources

jenni dunn
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