Stimming for neurotypical people refers to common, often subtle, repetitive behaviors like foot-tapping, hair-twirling, nail-biting, fidgeting, or humming, which serve to self-regulate emotions, cope with boredom or stress, focus, or manage sensory input, much like stimming in neurodivergent individuals, but typically less intense and socially disruptive. Everyone stims, but it's more noticeable and frequent in autistic or ADHD individuals, though it's a universal human behavior for soothing or stimulating the senses.
Stimming is not exclusive to neurodivergent individuals; neurotypical people can also exhibit stimming behaviors. While less studied in this group, examples like tapping a foot or twirling hair are forms of stimming seen in neurotypicals, highlighting the broad spectrum of stimming across populations.
Stims that may appear in autism, ADHD, or in neurotypical individuals include: Hair-twirling. Nail-biting. Scratching or rubbing the skin.
Stimming: Definition and Examples
“Stimming” is short for self-stimulatory behaviors, or behaviors that stimulate one or more of the senses. In most cases, stimming isn't harmful. Instead, people stim because they find it helps them in some way. Stimming may help someone calm down.
While stimming behaviors are often associated with autism, it's important to recognize that they are not exclusive to individuals on the spectrum. Neurotypical individuals, including infants, young children, and adults, may also exhibit stimming behaviors.
For non-autistic children, stimming can be a way to release excess energy, manage stress or anxiety, or simply explore and interact with their environment. It is a natural and instinctual response that helps children cope with different situations.
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.
Happy stims are behaviors exhibited in response to joy, excitement, or contentment. They might include energetic hand flapping, jumping, or spinning in circles. These actions reflect the individual's positive emotions or heightened interest in something.
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.
Anyone can stim, but stimming is commonly linked with neurodivergence, ADHD, and autism. In this article, we discuss stimming and learn more about the benefits, stigmas, and misconceptions.
Key Characteristics of Neurotypical People
Hidden stimming refers to regulatory behaviours that fly under the radar, these are often subtle, socially acceptable, or deliberately concealed. These are the stims many children use when they don't feel safe to be visibly autistic.
Overstimulation can happen to anyone, but neurodivergent people tend to experience it more frequently, especially if they have a sensory processing disorder. Many autistic people experience sensory input more intensely than neurotypical people, making them more prone to overstimulation in day-to-day life.
Hand flapping can be a completely normal behavior for people of all ages, even those without autism [1]. Typically developing children and adults may exhibit hand flapping occasionally in response to excitement, nervousness, or stress without it being linked to autism.
Why do autistic people stim? For autistic people, excess energy can build up for a variety of possible reasons – such as sensory, social, emotional or information overload – or even boredom. Autistic people can also find it hard to move from one activity to another.
People with ASD often have problems with social communication and interaction, and restricted or repetitive behaviors or interests. People with ASD may also have different ways of learning, moving, or paying attention. It is important to note that some people without ASD might also have some of these symptoms.
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.
Children with autism may exhibit rigidity, inflexibility and certain types of repetitive behavior such as: Insistence on following a specific routine. Having difficulty accepting changes in the schedule. A strong preoccupation with a particular interest.
"Looping" in autism refers to getting "stuck" in repetitive mental cycles, replaying thoughts, questions, worries, or phrases endlessly, often triggered by stress, sensory overload, or uncertainty, and linked to challenges with executive function and attention. It's a non-clinical term for perseveration or rumination, where an autistic individual's brain struggles to shift focus from an internal loop, which can be mentally exhausting but sometimes also comforting.
In fact, stimming is quite common among neurotypical individuals, both with children and adults. Stimming may look a little different in individuals with autism and those without, though the reasons behind the behavior may be the same.
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.
Stimming behaviors often begin by age 3 and frequently occur when a child is engrossed in an activity or is excited, stressed or bored. An estimated 44% of people with autism report some type of stimming action.
While the exact reasons are not yet clear, changes in how the disorder is defined, increases in screening, and more awareness certainly contribute to this increase. If you have any concerns about your child's development, speak to a healthcare professional about diagnostic tests.
Donald Triplett, autism's 'Case 1,' dies at 89. Triplett gained media attention for his autism later in life, and he became the face of the effort to research the lives of older adults with autism.
Is autism genetic? Research tells us that autism tends to run in families, and a meta-analysis of 7 twin studies claim that 60 to 90% of the risk of autism comes from your genome. If you have a child with autism, you are more likely to have another autistic child.