Attention Deficit Hyperactivity Disorder (ADHD) Symptom Test

The ADHD test measures the severity of symptoms related to attention deficit hyperactivity disorder. It primarily evaluates levels of inattention and hyperactivity. ADHD manifests differently in every individual: some may experience only inattention, others only hyperactivity, while many face a combination of both.

After completing our free test, you will see your results across two scales: inattention and hyperactivity. To consider a formal evaluation for ADHD, you don't necessarily need high scores on both scales; a high score on just one may be significant.

To begin, click the “Start Test” button below.

Start Test

How to Manage ADHD Symptoms?

If your test results suggest a high likelihood of ADHD, you may want to take steps to minimize its impact on your daily life. Below are several evidence-based methods known to help manage symptoms.

Fresh Air and Ventilation

In 2012, researchers conducted scientific studies investigating how elevated carbon dioxide (CO2) concentrations in indoor air affect cognitive functions like attention, memory, and overall performance.

The study concluded that individuals working in poorly ventilated spaces with high CO2 levels were significantly less productive compared to those in well-ventilated environments. Furthermore, researchers observed a drop in cognitive performance so significant that it was compared to the impairment caused by mild alcohol intoxication.

Other studies suggest that high CO2 levels are a major environmental factor that can worsen ADHD symptoms. Therefore, ensuring proper ventilation in your home or workspace is one of the simplest ways to improve focus.

Nature and the Outdoors

Research has explored how natural environments affect cognitive function in people with ADHD. Findings show that spending time in nature significantly boosts concentration compared to urban settings. This is the basis of Attention Restoration Theory (ART), which suggests that nature allows the brain to rest from 'directed attention' (effortful focus) by engaging 'involuntary attention.' Additionally, nature helps lower cortisol (the stress hormone), reducing the anxiety that often accompanies ADHD.

Meditation and Mindfulness

At its core, meditation is the practice of training your mind to focus and redirect your thoughts. While it can be challenging—especially for those with ADHD—it is one of the most effective non-medical ways to manage symptoms. It helps the brain resist external distractions and improves emotional regulation, intelligence, and self-awareness.

Nutrition and Supplements

A deficiency in certain vitamins, minerals, and fatty acids can exacerbate ADHD symptoms:

Omega-3 Fatty Acids. Essential for brain function, Omega-3s (particularly EPA) can improve attention and reduce hyperactivity. Many people with ADHD have lower levels of these fats. Cod liver oil is an excellent source, also providing vitamins D and A.
Vitamin D. This vitamin influences dopamine and serotonin receptors in the brain. It can be obtained through sunlight or supplements like fish oil.
B Vitamins. Vitamins B6, B9, and B12 are crucial for nervous system health. Nutritional yeast is a popular, nutrient-dense source of these vitamins.
Magnesium. Magnesium helps calm the nervous system and improves sleep quality, which indirectly leads to better focus during the day.
Iron. Iron is necessary for dopamine production—the neurotransmitter that regulates attention and impulse control. Low iron levels are frequently linked to increased ADHD symptoms.

It is also worth noting the negative impact of high sugar consumption. Frequent sugar intake leads to insulin spikes and potential insulin resistance, which can impair cognitive function and worsen symptoms of inattention.

Healthy Lifestyle

Regular physical activity, especially aerobic exercise, increases dopamine and norepinephrine levels in the brain, helping to improve focus. Quality sleep is equally vital, as sleep deprivation significantly mimics and worsens ADHD symptoms. Supplements like magnesium and B vitamins can often help stabilize sleep patterns.

Can ADHD go away on its own?

Statistics show that many children with ADHD see a reduction in symptoms as they mature. However, for about 10% to 50% of individuals, significant symptoms persist into adulthood, requiring proactive management rather than just 'waiting it out.'

What are the types of ADHD?

There are three primary presentations of ADHD:

Predominantly Inattentive — Accounts for about 30% of cases. Individuals find it hard to focus, follow through on tasks, or stay organized. They are easily distracted by internal thoughts or their environment.
Predominantly Hyperactive-Impulsive — Accounts for about 15% of cases. Characterized by a constant need for movement and acting without thinking about consequences. While physical hyperactivity often decreases with age, impulsivity may remain.
Combined Presentation — The most common type (55% of cases), involving significant symptoms of both inattention and hyperactivity-impulsivity.

About the ADHD Symptom Checklist

Our test is based on the Adult ADHD Self-Report Scale (ASRS-v1.1). Research indicates that ADHD symptoms can persist into adulthood, impacting relationships, careers, and personal safety. Because it is often misdiagnosed, many adults never receive the support they need to reach their full potential. The ASRS-v1.1 was developed in conjunction with the World Health Organization (WHO) and a workgroup of leading psychiatrists and researchers, including:

Lenard Adler, MD: Associate Professor of Psychiatry and Neurology at NYU School of Medicine
Ronald C. Kessler, PhD: Professor of Health Care Policy at Harvard Medical School
Thomas Spencer, MD: Associate Professor of Psychiatry at Harvard Medical School

The test consists of 18 questions divided into two parts: one measuring hyperactivity/impulsivity and the other measuring inattention. Responses range from 'Never' to 'Very Often.' This online assessment is free and can be used as a preliminary screening tool for both adults and children.