ADHD: Types, Causes, Symptoms & Treatments

Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder that affects both children and adults. It is characterized by a persistent pattern of inattention, hyperactivity, and impulsivity that interferes with daily activities and functioning. In this article, we will explore the different types of ADHD, causes, symptoms, and available treatments.

Types of ADHD

There are three types of ADHD: hyperactive-impulsive type, inattentive type, and combined type.

The hyperactive-impulsive type is characterized by excessive movement, restlessness, and impulsive behavior. Children with this type of ADHD may fidget, talk excessively, interrupt others, and act without thinking.

The inattentive type is characterized by a difficulty in paying attention and focusing on tasks. Children with this type of ADHD may appear to be daydreaming, forgetful, and disorganized.

The combined type is the most common type of ADHD and includes symptoms of both hyperactivity-impulsivity and inattention.

Causes of ADHD

The exact cause of ADHD is unknown, but research has suggested that genetics, brain development and function, and environmental factors may play a role.

Studies have found that ADHD tends to run in families, indicating a genetic component. Brain imaging studies have also shown differences in the brains of individuals with ADHD compared to those without it.

Environmental factors, such as prenatal exposure to toxins, low birth weight, and premature birth, may also increase the risk of developing ADHD.

Symptoms of ADHD

The symptoms of ADHD vary depending on the type and severity of the disorder. The most common symptoms of ADHD include inattention, hyperactivity, and impulsivity.

Inattention symptoms include difficulty focusing on tasks, forgetfulness, disorganization, and procrastination. Hyperactivity symptoms include excessive movement, restlessness, and difficulty staying still. Impulsivity symptoms include acting without thinking, interrupting others, and taking risks.

Other symptoms of ADHD may include emotional dysregulation, sleep problems, and difficulty with social interactions.

Diagnosis of ADHD

Diagnosing ADHD involves a comprehensive evaluation process that may include medical, psychological, and educational assessments.

The American Psychiatric Association has established criteria for diagnosing ADHD, including the presence of several symptoms of inattention, hyperactivity, or impulsivity that interfere with daily activities and functioning.

Early diagnosis and treatment of ADHD is important, as it can help individuals manage their symptoms and improve their overall quality of life.

Treatment of ADHD

Medications are often used to manage the symptoms of ADHD, including stimulants and non-stimulants. Stimulants work by increasing dopamine and norepinephrine levels in the brain, which can improve attention and focus. Non-stimulants work differently, but can also be effective in managing symptoms.

Behavioral therapy is another effective treatment option for individuals with ADHD. This type of therapy involves working with a trained therapist to develop coping strategies and improve behavior.

Other treatments for ADHD may include dietary changes, such as reducing sugar and processed foods, as well as incorporating regular exercise and improving sleep habits.

Lifestyle changes for managing ADHD

In addition to treatment, there are several lifestyle changes that can be made to manage symptoms of ADHD. A healthy diet that is rich in nutrients and low in sugar and processed foods can improve brain function and help reduce symptoms. Regular exercise can also improve focus and concentration.

Getting enough sleep is also important for individuals with ADHD, as lack of sleep can exacerbate symptoms. Establishing a consistent sleep routine and avoiding electronic devices before bedtime can help improve sleep quality.

Support for individuals with ADHD

Individuals with ADHD often benefit from support from family, school, and work. Family support can involve understanding the symptoms of ADHD, developing coping strategies, and providing a structured environment.

School support may involve developing an Individualized Education Plan (IEP) or a 504 plan, which can provide accommodations and support for students with ADHD.

Workplace support can involve requesting accommodations, such as a quiet workspace or flexible schedule, as well as developing strategies for managing symptoms in the workplace.

Coping strategies for ADHD

Individuals with ADHD can also develop their own coping strategies to manage their symptoms. Time management strategies, such as breaking tasks into smaller chunks, can help improve productivity. Organization strategies, such as creating a routine and using a planner, can also be helpful.

Stress reduction strategies, such as deep breathing and mindfulness, can help individuals with ADHD manage their emotions and reduce anxiety.


ADHD is a common neurodevelopmental disorder that affects both children and adults. It is important to understand the different types, causes, symptoms, and available treatments in order to effectively manage this condition. By making lifestyle changes, seeking support, and developing coping strategies, individuals with ADHD can improve their overall quality of life.


Is ADHD a real condition or just an excuse for bad behavior?

ADHD is a real condition that affects brain function and behavior.

Can ADHD be cured?

There is no cure for ADHD, but symptoms can be effectively managed with treatment.

What are some common misconceptions about ADHD?

Some common misconceptions about ADHD include that it only affects children, that it is caused by poor parenting or lack of discipline, and that medication is the only treatment option.

How can ADHD affect relationships?

ADHD can affect relationships by causing difficulties with communication, emotional dysregulation, and impulsivity.

Can adults be diagnosed with ADHD?

Yes, ADHD can be diagnosed in adults who display symptoms of the disorder.


  1. American Psychiatric Association. (2013). Diagnostic and Statistical Manual of Mental Disorders (5th ed.). Arlington, VA: American Psychiatric Publishing.
  2. National Institute of Mental Health. (2021). Attention Deficit Hyperactivity Disorder. Retrieved from
  3. Centers for Disease Control and Prevention. (2021). Attention-Deficit / Hyperactivity Disorder (ADHD). Retrieved from
  4. Child Mind Institute. (2021). Understanding ADHD. Retrieved from
  5. National Resource Center on ADHD. (2021). ADHD Basics. Retrieved from

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