ADHD Explained: Understanding Symptoms and Life Impacts

A comprehensive guide to understanding ADHD, its symptoms, diagnosis, and management strategies, with actionable insights to help you or a loved one navigate life with ADHD.

What Is ADHD?

Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental condition that is not only horribly named, it's also hard to understand and can have a lot of ups and downs. I like to call it consistently inconsistent. Many people don't even know if they have the condition or not because ADHD can manifest differently in each person. Doctors have to go through a long list of symptoms and check them off. The Diagnostic and Statistical Manual of Mental Disorders (DSM) has 18 criteria, while some lists of symptoms include many more traits.

But what is it that makes ADHD brains so different and hard to diagnose?

One factor that largely contributes to the difficulties diagnosing ADHD is that it frequently occurs with at least one comorbidity, such as depression, anxiety, or dyslexia. This is sometimes referred to as Complex ADHD, though this is not a clinical term.

ADHD is linked to unusually low levels of dopamine and norepinephrine, neurotransmitters that transfer between the prefrontal cortex and the basal ganglia. Dopamine interacts with other powerful neurotransmitters to regulate mood and is tightly linked to reward areas in the brain. As a result of the low dopamine levels, the person seeks the reward feeling in other ways.

These differences in the ADHD brain can cause a number of neurodevelopmental symptoms, including:

These symptoms help to form the criteria used in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) to diagnose ADHD. Not all of these symptoms are used in the criteria, however. Some, such as Emotional Dysregulation, have been difficult for scientists to quantify, so we haven't been able to get accurate studies done for them.

A full breakdown of the DSM-5 criteria for an ADHD diagnosis is coming soon.

Criteria not listed in the DSM-5 that can be a key indicator of ADHD

Emotional Dysregulation: Often unable to regulate emotion. This can cause disproportionate emotional responses to events or stimuli, such as becoming overly happy and excited over something you see or hear. Another example could be becoming easily frustrated or even explosively angry at someone because they said something with the wrong tone in their voice.

Hyper-focus: This one isn't directly in the DSM-5, but one of the criteria IS often caused by hyper-focus: "Often does not seem to listen when spoken to directly." Hyper-focus happens when an ADHD brain hones in on something that is interesting or exciting. When this happens, the brain will focus on this one singular thing so heavily that the rest of the world will seem to melt away and not exist. Think of being "in the zone" times 100. It can be so intensely focused that it may seem like the person is not listening when spoken to.

Sensory Sensitivity: Sensory sensitivity refers to heightened or reduced responses to sensory input, such as sounds, lights, textures, smells, or other environmental stimuli. People with sensory sensitivity may find certain everyday experiences overwhelming, distracting, or even painful. For others, these stimuli may feel muted or require more intensity to notice.

You're Not Broken, You're Just Wired Differently. ADHD is a complex neurodevelopmental condition, but it's also a unique way of experiencing the world. While the challenges of executive dysfunction and sensory sensitivity can be significant, they are only one side of the story. ADHD also brings incredible strengths: creativity, adaptability, passion, and the ability to think differently. By understanding and embracing these traits, we can create environments where individuals with ADHD not only manage their challenges but thrive and excel.

Do You Think You Might Have ADHD?

If you suspect that you have adult ADHD, it's important to seek medical advice to confirm the diagnosis. Contrary to popular belief, ADHD in adults does not always involve hyperactivity. Research on this topic has been conducted extensively over the years and includes data from sources such as the University of Massachusetts Medical School, Massachusetts General Hospital, and more than 100,000 scientific articles and books.

One of the challenges of ADHD is that individuals may not fully recognize the impact of their symptoms until their late twenties or early thirties. It's important to remember that ADHD is not a straightforward diagnosis, but rather a complex condition that can affect people in different ways. A helpful way to conceptualize ADHD is to think of it as a dimension, like a person's height or intelligence, where individuals fall at different points. Despite the challenges associated with ADHD, seeking appropriate treatment can help individuals manage their symptoms and improve their quality of life.

Typical adolescent and adult impairments

Less common, but notable

Can You Handle the Problem on Your Own?

While it can be a relief to identify ADHD as a potential explanation for the difficulties you've faced, it's important to seek professional help for diagnosis and treatment. There are several compelling reasons for doing so:

Many adults with ADHD also have other psychological disorders, including anxiety disorders, oppositional defiant disorder, learning disabilities, depression, bipolar disorder, addiction, and tic disorders.

Medications for ADHD have been shown to be highly effective, with studies indicating that they can normalize behavior in 50-65% of those with ADHD and substantially improve behavior in an additional 20-30%. Seeking professional help can provide you with access to the most effective treatments and resources to help you manage your symptoms and improve your overall quality of life.

Where Can You Go to Get Help?

To determine if you might have ADHD, a doctor who knows you well can use screening questionnaires. If you're looking for a professional who is experienced with ADHD, there are several options available.

First, you can call your primary care provider and ask for a referral to a specialist in your area. You can also check with your state psychiatric or psychological association, which usually keeps lists of professionals organized by specialty.

Major nonprofit organizations such as CHADD and ADDA may have support groups or chapters in your area that can recommend adult ADHD clinical experts. You can also contact the psychiatry department at a local university or hospital, or the psychology clinic at a local university, to see if they have any practitioners who specialize in adult ADHD evaluations.

Additionally, you can search for psychiatrists and psychologists specializing in adult ADHD online or through directories provided by CHADD and ADDitude Magazine. If you know someone who is being treated for adult ADHD, you can ask for a referral to their practitioner. Websites for CHADD and ADDA can provide additional resources and information (see the ADHD + Autism Resources page for links).

Questions to ask before you make an appointment

What Is Needed for an ADHD Evaluation?

To conduct a comprehensive ADHD evaluation, the following components are typically included:

To facilitate these steps, individuals should bring any relevant records from schools, physicians, mental health professionals, driving or criminal records, and any other documentation of problems that could be related to ADHD or another disorder. They should also provide the names of a few people who know them well and whom they trust to speak honestly and objectively with the evaluators. Results of a medical exam from a physician and a list of family members with mental disorders should also be shared. Additionally, a description of impairments during childhood and adolescence, as well as recent ones, should be provided.

The initial evaluation appointment can take several hours, so individuals should be prepared for this.

The evaluation may include a brief test of general cognitive ability to rule out limitations in intellectual or learning abilities that may contribute to ADHD-like symptoms. Tests involving reading, math, and spelling may also be given, especially in educational settings. Individuals with ADHD are more likely than others to have specific learning disabilities, and it's important to know if this is the case. Tests of attention, inhibition, and memory may also be given, but not all psychologists use these tests, and they are not always accurate for diagnosing ADHD.

What Will the ADHD Evaluation Tell You?

The evaluation will provide a comprehensive assessment of your symptoms and overall functioning. The findings from all the information gathered will be discussed, and you will receive an opinion about whether you have ADHD or any other related problems. Additionally, a set of recommendations will be provided on what to do about your ADHD and any other problems uncovered.

To be diagnosed with ADHD, the professional conducting the evaluation must determine that you have high levels of inattention and/or hyperactive and impulsive behavior. These symptoms must occur far more often than in other adults your age and have had adverse consequences for you in many different domains in both childhood and adulthood. Your symptoms must have been present in their current form for at least 6 months and have developed before you were 12-16 years old.

While the DSM criteria for diagnosing ADHD require at least five symptoms from either the inattention or hyperactivity-impulsivity symptom list, many individuals can have ADHD symptoms without having all five symptoms. Recent research has shown that having four symptoms from either list may indicate ADHD to a degree inappropriate for an adult. It's worth noting that these criteria were originally designed to diagnose children, not adults.

Some common ADHD symptoms in adults include a short attention span or lack of persistence on tasks, which can make it challenging to complete tedious or drawn-out activities. Examples of these symptoms may include getting easily bored during repetitive tasks, shifting from one uncompleted activity to another, losing concentration during long tasks, or struggling to submit reports on time without being reminded by your boss.

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