If a person on a street is asked to describe a person with ADHD, they most probably will describe a restless boy who can’t focus and undermines lessons. Even if mostly true, this doesn’t mean that only boys of school age can be neurodivergent. In reality, ADHD is very multifaceted.
People with ADHD can go years without a diagnosis because their symptoms don’t fit the stereotype. They may appear organized, yet “a bit scattered,” while their mind is racing through thousands of thoughts per day. If symptoms are really that different, what are the signs of ADHD? And does the ADHD type play that important a role?
What are The Signs of ADHD by Type?
While ADHD might be spoken about as if it’s one uniform condition, the reality is more nuanced. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) recognizes three distinct presentations: Inattentive, Hyperactive-Impulsive, and Combined.
ADHD types have symptoms that may overlap, depending on the case. Understanding these differences is easier with an ADHD test online that measures inattentive or hyperactive tendencies. An online quiz as a first step is an especially valuable tool, considering that ADHD signs present differently for different ages, genders, and even ethnicities.
According to the CDC, 12% of children up to 17 years have been diagnosed with ADHD in 2023, but research shows many adults, especially women, go undiagnosed for years [1]. This is partly because the signs can be subtle or misinterpreted as personality quirks.
1. Signs of Inattentive ADHD Type
Inattentive type is one of the types of ADHD that causes problems with focusing on details, following instructions, and maintaining mental effort in general. Like any ADHD, inattentive type occurs mostly due to genetic reasons connected to the brain’s ability to regulate attention.
Common signs of Inattentive ADHD include:
- Frequently making “careless” mistakes at work or school
- Getting easily distracted by unrelated thoughts or stimuli (noise outside, phone notifications, people behind the wall, etc.)
- Forgetting appointments or deadlines
- Losing items needed for daily activities (keys, phone, documents)
- Avoiding tasks that require sustained mental effort
- Daydreaming during conversations or meetings
Unfortunately, this type of ADHD is not diagnosed as frequently because it doesn’t fit into the stereotypes about hyperactive ADHD. Moreover, girls are more likely to be diagnosed with inattentive ADHD than boys [2]. Because inattentive ADHD brings more internal troubles, many wonder whether they can have ADHD if they are not hyper, and the answer is yes.
2. Signs of Hyperactive-Impulsive ADHD Type
The hyperactive-impulsive type of ADHD usually corresponds to the stereotypes around ADHD. This type involves high levels of energy, restlessness, and a tendency to act without fully thinking things through. While this can manifest externally (physical movement), not everybody is aware that the hyperactive-impulsive type can also manifest internally, like racing thoughts.
What are the ADHD signs of this type?
- Constant fidgeting or tapping hands/feet
- Feeling restless in situations where stillness is expected
- Interrupting others or blurting out answers prematurely
- Talking excessively, even in situations that require quiet
- Difficulty waiting your turn
- Making quick decisions without considering consequences
Hyperactive symptoms usually persist into adulthood. But how come we don’t see these disruptive boys in our workplaces? The symptoms of hyperactive ADHD type become more subtle with aging and learning social norms, and adults internalize hyperactivity in their minds.
Children with hyperactive ADHD don’t get rid of this state as soon as they turn 18. But if you still can’t imagine an adult with hyperactive-impulsive ADHD type, think about Jake Peralta from Brooklyn Nine-Nine. Energetic and quick to act, he’s the perfect representation of hyperactive ADHD signs in an adult.
3. Signs of Combined ADHD Type
Combined type of ADHD is the most frequently diagnosed type of ADHD, accounting for 70% of all diagnoses [3]. Its symptoms are the most common among both children and adults, as this combines ADHD signs from the inattentive and hyperactive-impulsive types. Adults with this type may feel like they’re constantly fighting between distractibility and overactivity.
Common signs of Combined ADHD include:
- Difficulty focusing and staying on task
- Hyperfocusing on the task if it’s a special interest
- Restlessness and need for frequent movement or stimulation
- Interrupting or talking over others
- Struggling with organization and time management
- Forgetfulness and impulsive decision-making
A lot of myths about ADHD come from this type. For example, people with ADHD start three household projects at once, then realize at the end of the day that none are finished. Or they can’t be focused and productive unless a task really appeals to them.
Tips for Managing Signs of Different Types of ADHD
Recognizing your ADHD type is just the first, but critical step. Once you know which symptoms dominate, you can choose strategies that play to your strengths while supporting the growth areas. The following tips are adjusted for each presentation of ADHD. Some might seem similar as they address the root cause: focus issues.
Managing Inattentive ADHD Type
If you read through the ADHD signs, and distractibility and forgetfulness seem to be your main challenges, the goal is to externalize organization and keep your environment attention-friendly. You can start with these:
- Use visual reminders: Sticky notes, whiteboards, and widgets for key deadlines and tasks. In this way, all the important information won’t have the chance to hide away from you.
- Break work into short bursts: The Pomodoro Technique (25 minutes of focus, 5-minute break) helps sustain mental effort. Feel free to adjust focus/break time as you think is needed. It’s also a great exercise to train your focus like a muscle.
- Declutter your workspace: Although some people with ADHD might find it difficult to maintain clean spaces, it’s essential if inattentive signs seem to overwhelm. Fewer distractions = fewer mental detours.
- Pair boring tasks with something pleasant: Try listening to a favorite playlist while doing chores. If that’s not possible, set small rewards like breaks, sweets, walks, or 5-minute screen time for small tasks. That’s how you keep an inattentive brain engaged and happy to focus.
Managing Hyperactive-Impulsive ADHD Type
Do hyper-impulsive signs describe you? If a person is in constant motion, either physically or mentally, the strategies should strive to redirect that energy productively and slow down impulsive decision-making. Common strategies from experienced mental health professionals include:
- Scheduled movement breaks: The study has found that movement prior to or after a task that requires focus helps with focusing and makes people with hyperactive ADHD more productive [4]. ADHD and physical movements are a great pair in any combination, from gym sessions to 10-minute walks.
- Mind-body activities: It might be hard to start with yoga, martial arts, or dance, but their effect on hyperactivity is invaluable. These activities teach the brain not to satisfy the need for stimulation but to control and internally address it, eventually improving self-control.
- Use a “parking lot” notebook: A hyperactive brain switches between numerous thoughts per minute. If you feel like you’re contemplating something important, creative, or valuable, dump it into the notebook or note app on your phone. That’s how you will keep the thought, but won’t disrupt your current task.
Managing Combined ADHD Type
If you relate to both inattentive and hyperactive-impulsive ADHD signs, you’ll benefit from blending strategies for both types. However, for the combined type, an extra emphasis should be put on planning and self-regulation.
- Daily planning rituals: Review your schedule each morning and adjust as needed. This should also account for how you feel, either energised and ready to go through the day or scattered and ready for the bare minimum.
- Body-doubling: Working alongside someone else helps people with combined ADHD types stay on task. That’s how they avoid external triggers (unless your work partner distracts you) and don’t fall into hyperfocus.
- Limit multitasking: ADHD thrives on multitasking. Focus on completing one thing before moving on to the next. Of course, you can complete the tasks that are most pleasant to you first and then move on to less-stimulating work.
Frequently Asked Questions (FAQs)
Can you have ADHD and not be hyper?
Yes. People with inattentive-type ADHD usually experience problems with focus, memory, and organization without showing hyperactivity. Combined ADHD type, although it might show hyperactive-impulsive signs, can also manifest itself more like inattentive, especially in girls.
Do I have ADHD, or am I just lazy?
ADHD is not laziness. It’s a neurodevelopmental condition affecting attention, impulse control, and self-regulation. Unlike laziness or procrastination, ADHD interferes with work, family, school, and relationships, causing long-term problems.
What is having inattentive ADHD like?
It can feel like your brain is “elsewhere.” People report zoning out in conversations, forgetting details, or procrastinating despite wanting to act. Inattentive ADHD, unlike the hyperactive-impulsive type, is invisible to others, but it’s as impactful for work, relationships, and daily life.