Evidence Based

Why ADHD and Anxiety Often Occur Together

Dr. <a href="https://mentalroot.com/author/dr-amanda-l-weaver-md-mph/">Amanda L</a>. Weaver, MD, MPH
Written by:
Dr. Amanda L. Weaver, MD, MPH
Dr. <a href="https://mentalroot.com/reviewer/dr-emily-foster-pharmd-bcps/">Emily Foster</a>, PharmD, BCPS
Reviewed by:
Dr. Emily Foster, PharmD, BCPS

Updated on: 01.08.2025

read time 5 min read

Disorders like nervousness and ADHD (attention deficit hyperactivity disorder) are not the same thing. But sometimes they happen at the same time, and a study has found a strong link between them. The Anxiety and Depression Association of America (ADAA) says that in the US, about half of the people with ADHD also have an anxious condition.  There is also a link that goes both ways. People with ADHD often have anxiety problems, and there is a good chance that ADHD itself causes worry in those who have it.
A lot of the time, ADHD starts in youth. People with ADHD may squirm, have short attention spans, act impulsively, be energetic, and be restless, among other symptoms. ADHD can last into adulthood, and people with it also have to deal with other problems every day, like not paying attention when they study, missing work tasks and thinking about it, and feeling stressed and anxious all the time.
The exact reasons why ADHD and anxiety illnesses often happen together have not been figured out by researchers. Some of the things that can cause ADHD, like being born too early, genetics, and chemicals in the surroundings, might also play a part in that. In this post, we discuss how these conditions are related, their common and unique signs, and how to treat them.

Can ADHD cause anxiety?

When a person has both ADHD and anxiety, it can be difficult to tell the two apart because they share some symptoms. Both conditions can cause trouble relaxing, focusing, and paying attention, even though the reasons behind these symptoms may be different.
It is important to learn about both conditions and get an accurate diagnosis. Understanding how they are connected can also help.
ADHD affects how the brain works, so adults with ADHD may find that their anxiety gets worse. People with both ADHD and anxiety often have trouble keeping the right balance of serotonin and dopamine in their brains. These levels can be too low or too high, which can lead to:
  • Feeling down
  • Stress and anger
  • Getting angry
  • Feeling overwhelmed
  • Having strong urges
Some ADHD medications, especially stimulants like amphetamines (Adderall), can also cause anxiety or make it worse. If someone’s anxiety does not improve, their doctor might recommend switching to a non-stimulant medication like viloxazine (Qelbree).

ADHD Symptoms That Can Make Anxiety Disorders Worse

Now that we know ADHD and anxiety disorders are linked in adults, people with ADHD might wonder if their anxiety is getting worse. The answer is that it can happen.
For example, people might feel stressed, restless, have memory problems, or struggle to focus, and all of these can make anxiety worse. People with ADHD may also find it hard to make important decisions, which can add to their anxiety. Perfectionists with ADHD may feel anxious if their symptoms keep them from meeting their own standards. ADHD can also affect the part of the brain that controls emotions, which may lead to more worry.
Managing ADHD with good planning, setting clear tasks, removing distractions, and living a healthy lifestyle is the best way to reduce these symptoms.

Similarities Between ADHD and Anxiety

There are some physical and mental signs that are similar between ADHD and worry. Some of these are:
  • The body’s “fight or flight” reaction becomes more active when the sympathetic nervous system takes over.
  • Low amounts of gamma-aminobutyric acid (GABA), a chemical that controls the firing of neurotransmitters.
  • Lack of sleep.
  • Feeling tired or quickly getting tired.
  • Thoughts that bother you.
  • Having trouble focusing.
  • Tension in muscles.
  • Tension in muscles.
  • Getting restless.
  • Getting angry.
Still, people who have ADHD or anxiety should know that these are two different illnesses with different symptoms, even though they share some signs. So, you need to keep an eye on your condition and get professional help for the right way to treat it.

How to Help Someone with ADHD and Anxiety

It’s hard to treat people who have both ADHD and anxiety because ADHD medicine can make anxiety symptoms worse. Often, doctors use new methods to treat multiple problems simultaneously and create personalized treatment plans for each patient. Medication, lifestyle changes, therapy, and calming techniques are some ways you can get help.
But it might also be good to treat one problem before the other. Treatment should be done in the same order that the illnesses appear. For example, if the patient’s anxiety is caused by their ADHD, treating the ADHD first with cognitive behavioral therapy (CBT) and/or medicines might help. Then the anxiety signs should be reviewed again.

How to Use Emotional Regulation

Emotional control helps people with social anxiety and ADHD keep their emotions in check when things get tough. It helps these kinds of people stay calm and think clearly when things get stressful. You can achieve good results with emotional control when you use it alongside other types of care. Some of its methods are:
  • Figuring out feelings.
  • Improving your physical health will have a good effect on your mental health.
  • Learn how to deal with your feelings and keep them in check.
  • For example, you could use meditation to help you stay balanced.
  • The process of challenging unproductive beliefs that bring unfavorable feelings.
  • Getting positive results by doing things.
  • Staying away from events that are mentally hard.

Conclusion

Anxiety and ADHD are two different diseases with different signs. But sometimes the signs can happen at the same time. People who have both nervousness and ADHD find it hard to do daily tasks and keep long-term jobs. It might be hard for them to focus on daily tasks. To improve their quality of life, they should get the right medicine.

The good news is that both situations are very easy to deal with. People should talk to mental health workers to help them tell the difference between the conditions and come up with a good treatment plan.

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