What is ADHD? (Free ADHD Test + Symptoms)

Think back to elementary school. Did any of your classmates have ADHD? What were they like? How did teachers or parents describe them when talking about this disorder? 

If this classmate was a boy, you might remember them as being the “hyper” person in school. They were fidgety, they talked a lot, or they had random outbursts that got them into trouble. Maybe your teachers told them that they needed to focus. 

Do I Have ADHD?

For many people, this is the typical “picture” they have in their mind of someone with ADHD: a child, usually a boy, who is always running around or scolded for being distracted. But as you graduate, enter the workforce, and make adult friends, that picture is likely to change. 

Do not use this as a replacement for reaching out to a licensed professional. If you think you have ADHD, reach out to a psychiatrist. 

What Is ADHD? 

ADHD, or Attention-Deficit/Hyperactivity Disorder, is a neurodevelopmental disorder that affects both children and adults. As our brains grow and develop, we acquire or strengthen certain skills. A child, for example, naturally has less impulse control than an adult. Our ability to regulate emotions grows and changes over time.

But for some people, these skills don’t come so easily. Their brains may be smaller or underdeveloped compared to their peers. In these cases, a child may be diagnosed with ADHD. 

Of course, children (or adults) are not usually diagnosed from a CAT scan or by simply recognizing a lag in brain growth. ADHD presents itself through a variety of “behavioral issues” or traits that are uncommon among their peers. 

ADHD isn’t just about restless legs or being a chatty kid. Adults in your life may come to realize that ADHD presents itself as anxiety, depression, “laziness,” zoning out, self-esteem, or a lot of other misunderstood behaviors and traits. As you learn more about ADHD, you might find that a lot of the things you are insecure about may have an explanation. Many adults find out that they have ADHD later in life - and the diagnosis is a sigh of relief. Take some time to learn about ADHD, how it affects your ability to focus, form relationships, and complete tasks. You might understand yourself, your friends, or your colleagues more. 

ADHD and the Brain 

Neurodevelopmental disorders like ADHD are associated with irregular or poor functioning in different areas of the brain. Although research on ADHD still leaves us with a lot of questions about this disorder, we do know that the frontal lobe of people with ADHD differs from “neurotypical” people. In children, this area is often smaller. 

The frontal lobe is associated with tasks like organization, attention, and decision-making. Underdevelopment of this area may result in a wide variety of symptoms that all fall under the umbrella of ADHD. This underdevelopment takes many forms, including the literal size of the frontal lobe, weak connections between neural networks, variations in neurotransmitters, and lags in the development as a person grows from a child to an adult. Blood flow and brain activity may also be unusual in someone with ADHD. 

There is no one exact form of underdevelopment that causes ADHD - as research continues, the way that ADHD is diagnosed or interpreted may change. For example, recent research has shown that the amygdala and hippocampus, areas of the brain that are associated with emotions and impulsive behaviors, may also differ in size or activity among people with ADHD. 

What Are the Symptoms of ADHD? 

The language surrounding symptoms and diagnosis of ADHD probably has changed since you were introduced to classmates or people with ADHD! Rather than diagnosing someone with ADD, for example, a clinician may now diagnose a patient with a specific type of ADHD. 

Not all people with ADHD display the same symptoms or behaviors. The DSM-5 recognizes three categories of ADHD with their own set of symptoms. These three categories are predominantly hyperactive, predominantly inattentive, and combined type. 

Predominantly Hyperactive

This is the type of ADHD that clinicians have traditionally identified and diagnosed. When you think of the hyper kid in your class, usually a boy, you are probably thinking of a child with predominantly hyperactive and impulsive type ADHD. Symptoms include: 

  • Constant fidgeting and squirming
  • Nonstop talking that appears to be out of control
  • Interruptions 
  • Impulsive behaviors 
  • Intense restlessness 
  • Inability to focus during group activities 

Predominantly Inattentive

ADHD isn’t just running around and fidgeting in your seat. Predominantly inattentive ADHD, previously known as ADD, is another form of ADHD that is more commonly diagnosed in adults or young girls. This form of ADHD is also commonly mistaken for general inattentiveness. Symptoms include: 

  • Losing focus 
  • Losing items easily
  • Failing to follow or pay attention to detailed instructions
  • Easily being distracted by stimuli outside of the task at hand
  • Short attention span 
  • Frequent daydreaming
  • Inability to focus on conversations due to distractions or other trains of thought

People with predominantly inattentive ADHD often have a poor working memory.

Combined Type

Although people with ADHD all have some sort of neurodevelopment issues, these issues range and so do symptoms. A person diagnosed with combined type ADHD may display any combination of the above symptoms. This is one of the things that makes ADHD so tricky to diagnose, especially in adults. 

Who Has ADHD? 

Just because ADHD has been traditionally a diagnosis for men and boys and ADD was traditionally a diagnosis given to women and girls does not mean that these symptoms aren’t present in all children. As research on ADHD has developed, clinicians have discovered that a lot of symptoms go unnoticed and ADHD goes undiagnosed. Anyone can have ADHD, regardless of age or sex. 

ADHD is believed to be hereditary. If a parent (or a child) has been diagnosed with ADHD, consider speaking to a psychologist about concerning symptoms of behaviors. 

ADHD in Adults and Children 

ADHD doesn’t usually “go away” as the child develops into an adult. Most children with ADHD live with the disorder throughout their life. 

The symptoms and signs of ADHD were not always understood. Adults with ADHD today may not have been diagnosed as children and still live with the disorder, untreated. 

How Is ADHD Treated? 

Children and adults diagnosed with ADHD may go through a variety of treatments based on their development, age, and how severe the ADHD is. Some patients may be able to get a handle on their symptoms simply by attending talk therapy and finding healthy coping mechanisms that keep them on a routine and living a productive, happy life. Education for parents, teachers, and other people in the patient’s life may also make it easier for symptoms to be identified, understood, and managed at school or home. 

Other people may find that medication is required to bring about these results. The “right” medication may vary based on the severity of the ADHD. Stimulants are the most common form of medication - they work to release certain neurotransmitters that do not appear or function as well in people with ADHD. Antidepressants or similar non stimulants may also be used to treat symptoms of ADHD. A psychiatrist or licensed therapist can help you navigate the best forms of treatment if you have ADHD, anxiety, or any related disorders. 

How Does A Person Get Diagnosed with ADHD?

If a teacher or parent believes that a child has ADHD, they are likely to reach out to a counselor at school or their primary care doctor. But as you know, this is often mistaken for restlessness, laziness, or a whole other list of words that simply puts down the child rather than identifying neurodiversity. 

On the other hand, a child may be misdiagnosed with ADHD simply because they are younger and their brain has not developed at the same speed as their classmates. Brain development looks slightly different for everyone, so a brain may “catch up” or “slow down” at certain points in a person’s life. 

ADHD may be misdiagnosed as anxiety, depression, or even bipolar disorder or borderline personality disorder. The reverse can happen, too. If a treatment is not working or a patient switches psychiatrists, they may end up experiencing a switch in their diagnosis. 

This brings us to ADHD in adults. You may find that the signs and symptoms of ADHD are very familiar and appear to explain certain habits, behaviors, or decisions in your life. Maybe what you thought was anxiety really sounds more like ADHD. It’s okay to feel a little confused, as misdiagnosis is so common and many symptoms are written off as a personality trait rather than neurodiversity. 

The best way to understand how to manage symptoms and whether a diagnosis is appropriate is to reach out to a licensed therapist or psychiatrist, particularly one that specializes in ADHD. Your primary care doctor or health insurance may have suggestions for experts in your area. Working directly with someone in this field can help you understand the cause of your symptoms and how you can manage them in order to live a more productive and fulfilling life.

How to reference this article:

Theodore. (2021, July). What is ADHD? (Free ADHD Test + Symptoms). Retrieved from https://practicalpie.com/free-adhd-test/.

About the author 


Theodore created PracticalPsychology while in college and has transformed the educational online space of psychology. His goal is to help people improve their lives by understanding how their brains work. 1,700,000 Youtube subscribers and a growing team of psychologists, the dream continues strong!

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