Autistic ADHD (AuDHD) behaviors involve a complex mix of traits, including intense focus (hyperfocus) on special interests and difficulty sustaining attention, needing routine but craving novelty, sensory sensitivity with potential impulsivity, and social struggles (difficulty with social cues) alongside social chattiness, leading to internal conflict and exhaustion from managing opposing needs like seeking stimulation but needing quiet. Key behaviors often include executive dysfunction (poor organization, forgetfulness), emotional regulation challenges (meltdowns, burnout), unique sensory experiences, and a push-pull between structure and spontaneity.
The two conditions also have a number of opposing traits. For example, people with autism often focus on routines and sameness and may have difficulty transitioning or changing activities, while people with ADHD may be easily distracted and bored and look for new and different experiences.
Many people with one of the two diagnoses show elevated traits of both ADHD and autism. Common experiences for ADHD and autism include sensory differences, intense focus on specific interests, rejection sensitivity, executive dysfunction, sleep issues and emotional dysregulation.
Individuals with co-occurring conditions often experience challenges with transitions and routines, which can cause distress or anxiety. They might also display intense focus on specific interests, sometimes hours on end, which is common in autism but can also be seen in ADHD hyperfocus.
Individuals with ADHD may have problems maintaining focus in conversations, active listening, and organizing thoughts [17]. Individuals with ASD may have difficulty with social reciprocity, interpreting nonverbal communication, and engaging in dialogue [18].
The ADHD "30% Rule" is a guideline suggesting that executive functions (like self-regulation, planning, and emotional control) in people with ADHD develop about 30% slower than in neurotypical individuals, meaning a 10-year-old might function more like a 7-year-old in these areas, requiring adjusted expectations for maturity, task management, and behavior. It's a tool for caregivers and adults with ADHD to set realistic goals, not a strict scientific law, helping to reduce frustration by matching demands to the person's actual developmental level (executive age) rather than just their chronological age.
Chinning is a form of repetitive self-stimulatory behavior (stimming) that you may notice in children or adults with autism. It involves pressing, rubbing, or holding the chin against objects, surfaces, or even hands to gain sensory input or comfort.
The 20-minute rule for ADHD is a productivity strategy to overcome task paralysis by committing to work on a task for just 20 minutes, leveraging the brain's need for dopamine and short bursts of focus, making it easier to start and build momentum, with the option to stop or continue after the timer goes off, and it's a variation of the Pomodoro Technique, adapted for ADHD's unique challenges like time blindness. It helps by reducing overwhelm, providing a clear starting point, and creating a dopamine-boosting win, even if you only work for that short period.
Around 90% of autism cases are attributed to genetic factors, meaning autism is highly heritable, with many different genes contributing, rather than a single cause, often interacting with environmental influences during early brain development, though specific environmental factors don't cause it but can increase risk. Twin studies show strong genetic links, with concordance rates between 60-90% in identical twins, and research points to complex interactions of many genes and prenatal/perinatal factors.
The "6-second rule" for autism is a communication strategy where a speaker pauses for about six seconds after asking a question or giving information, giving the autistic person extra time to process it without feeling rushed, which helps reduce anxiety and allows for a more thoughtful response, reducing frustration for both parties. Instead of repeating or rephrasing, which can be confusing, you wait, and if needed, repeat the exact same words after the pause.
Paradoxically, someone with both conditions might struggle with maintaining attention in general but may hyperfocus intensely on specific topics or activities.
Meltdowns can be expressed verbally (eg, shouting, growling, or crying), physically (eg, kicking or flapping) or a mixture of both ways. An autistic person will lose control of their behaviour because they are completely overwhelmed and are unable to express themselves another way.
What is “Story Swapping”? When I say Story Swapping, this is when we share a similar experience we may have had to someone else. Say you're having a conversation with a friend and they've just told you about an encounter that didn't go to plan.
Symptoms
Five key signs of autism spectrum disorder (ASD) involve challenges with social interaction (like difficulty with eye contact or small talk), repetitive behaviors (such as hand-flapping or lining up toys), intense focus on specific interests, sensory sensitivities (to sounds, lights), and strict adherence to routines, often leading to distress when things change. These signs appear differently in children and adults, but generally center around communication, behavior, and sensory processing.
The alpha agonists used for ADHD and in children with ASD include guanfacine (Intuniv, Tenex) and clonidine (Kapvay, Catapres). These medications have been used not only for the treatment of ADHD in youth with ASD, but also for associated motor/vocal tics, aggression, sleep disturbances, and behavioral dysregulation.
Additionally, inherited genetic variations contribute greatly. Research shows that both mothers and fathers can carry autism-related gene variants. Some of these are common variants that increase the risk of autism, while others are rare mutations causing more severe effects.
Understanding the 6 stages of an autism meltdown can help parents, caregivers, and educators respond with empathy and support.
Researchers are not sure what causes autism, but they believe genetic and environmental factors play a role. Risk factors can include having older parents or a sibling with ASD, genetic or chromosomal conditions like Down syndrome or fragile X syndrome, and very low birth weight.
Increase stress relief by exercising outdoors—people with ADHD often benefit from sunshine and green surroundings. Try relaxing forms of exercise, such as mindful walking, yoga, or tai chi. In addition to relieving stress, they can teach you to better control your attention and impulses.
For adults, 7-8 hours is recommended. Try to avoid napping during the day. Optimise your sleep environment. Make sure your environment is quiet, calm and comfortable.
What is the Five-Second Rule? The Five-Second Rule is a technique to get things done the moment they cross your mind. The rule is once you get an instinct or gut feeling to do something that you know you should be doing, start it immediately.
Babies with Autism Do Smile – Just Not Always How You Would Expect. A common misconception about autism is that babies with autism don't smile. They do — but their smiles may appear less frequently, come at unexpected moments, or not seem directly tied to social interaction.
Common Obsessions in Autism
Penguin Pebbling is a term used to describe the act of autistic individuals giving small, spontaneous gifts as a way to show affection and build connections. This unique form of communication is considered a neurodivergent love language, often involving meaningful objects like smooth pebbles, flowers, or shared photos.