Why So Many Women Are Diagnosed Later
Learn about why so many women are diagnosed with neurodivergence later in life.
In recent years, there has been growing awareness that ADHD and autism are frequently overlooked in girls and women. Many individuals who receive diagnoses later in life describe spending years wondering why everyday tasks felt harder for them than they seemed to be for others. Some recall feeling constantly overwhelmed, while others remember pushing themselves to meet expectations through sheer effort and exhaustion.
Part of the reason for this pattern lies in the history of research. For many decades, most studies of ADHD and autism were conducted primarily with boys. As a result, the traits that clinicians learned to recognize were largely based on male presentations of these conditions. ADHD was often associated with visible hyperactivity and disruptive behavior, while autism was frequently described in terms of social withdrawal and restricted interests that were easy to notice in classroom settings.
Girls, however, often present differently.
Many girls with ADHD are not outwardly disruptive. Instead of appearing hyperactive, they may be quiet, daydreamy, or internally restless. Teachers may notice that they seem disorganized, forgetful, or easily overwhelmed, but these difficulties may be interpreted as personality traits rather than indicators of ADHD. Because these challenges do not necessarily disrupt the classroom environment, they are less likely to prompt a referral for evaluation.
A similar pattern can occur with autism. Autistic girls are often more socially motivated than the stereotypes commonly associated with autism. They may want friendships deeply and may spend significant energy trying to understand and imitate the social behaviors of their peers. Many become highly skilled observers, learning to mimic facial expressions, conversation patterns, and social scripts.
This process is often referred to as masking or camouflaging. Masking involves consciously or unconsciously suppressing behaviors that might stand out while adopting behaviors that appear more socially typical. For example, someone might rehearse conversations before social interactions, closely study how peers behave in group settings, or force themselves to tolerate sensory environments that feel overwhelming.
While masking can help individuals navigate social environments, it often comes at a cost. Many women who are later diagnosed with ADHD or autism describe chronic exhaustion from the constant effort required to keep up with expectations. They may feel as though they are always performing or trying to stay one step ahead of potential mistakes. Over time, this effort can contribute to burnout, anxiety, or a persistent sense of being misunderstood.
Social expectations can also play a role in delaying recognition. Girls are often expected to be organized, emotionally aware, and socially intuitive. When they struggle in these areas, the response may be increased pressure to try harder rather than curiosity about why these challenges exist. Some girls become highly conscientious and perfectionistic as they attempt to compensate for underlying difficulties, while others internalize feelings of failure or self-doubt.
Because of these factors, many women are not diagnosed until adulthood. Sometimes the process begins when a child is evaluated for ADHD or autism and a parent begins to recognize similar patterns in their own life. In other cases, adults seek answers after years of struggling with executive functioning, workplace demands, or chronic burnout that does not seem fully explained by anxiety or depression alone.
For many women, receiving an accurate diagnosis later in life can be a deeply validating experience. Patterns that once felt confusing or self-critical often begin to make sense when viewed through the lens of neurodevelopmental differences. Understanding these differences can open the door to more effective strategies, supportive environments, and a greater sense of self-compassion.
To learn more about this topic, I recommend the following resources:
https://www.autism.org.uk/advice-and-guidance/identity/autistic-women-and-girls
https://www.bmj.com/content/392/bmj-2025-084164
https://www.jaacap.org/article/S0890-8567(14)00725-4/fulltext
The beauty (and possible purpose) of neurodiversity
Learn about the possible evolutionary function of neurodiversity in our population.
When people first learn about ADHD or Autism, it is common to think of these differences as rare exceptions. In reality, neurodivergence is far more common than many people realize.
Current research suggests that ADHD occurs in roughly 5–10% of the population, while autism is estimated to occur in approximately 2–3%. When we also consider related neurodevelopmental differences—such as dyslexia, dyspraxia, and other learning differences—it becomes clear that a significant portion of the population experiences the world through brains that function somewhat differently from what is considered “typical.”
Rather than being anomalies, these differences may reflect the natural diversity of human cognition.
One question researchers have begun to explore is why traits associated with neurodivergence have persisted across human history. If these traits were purely disadvantages, we might expect them to gradually disappear over time through evolutionary processes. Instead, they appear consistently across cultures and generations.
One theory is that traits associated with ADHD may have offered advantages in earlier human environments. Individuals who were highly curious, quick to notice changes in their surroundings, and comfortable taking risks may have played important roles in activities such as exploration, hunting, or responding quickly to potential threats. High levels of novelty-seeking and rapid attention shifts may have been beneficial in dynamic environments where constant scanning of the surroundings was necessary for survival.
Similarly, traits often associated with Autism—such as deep focus, pattern recognition, and sustained attention to specialized interests—may have contributed to the development of tools, technologies, and specialized skills within communities. Individuals who could spend long periods studying details, identifying patterns, or refining complex tasks may have played important roles in innovation and craftsmanship.
From this perspective, neurodivergence may represent different cognitive specializations rather than simple deficits.
Interestingly, researchers have also observed variations in behavior that resemble aspects of neurodivergence in other species. Studies of animals such as dogs, primates, birds, and rodents have identified individuals who consistently display higher levels of impulsivity, risk-taking, intense focus, or reduced social engagement compared to others in their group.
In many cases, these differences appear to serve adaptive functions within animal populations. For example, individuals who are more exploratory or novelty-seeking may be more likely to discover new food sources or territories. Others who display intense focus on specific tasks may contribute to activities that require sustained attention and precision.
These patterns suggest that behavioral diversity may be a common feature of complex social species.
Within human societies, the environments we live and work in often favor certain cognitive styles over others. Modern educational and workplace systems tend to reward sustained attention to structured tasks, strong organizational skills, and the ability to manage multiple responsibilities simultaneously. For individuals whose brains operate differently, these expectations can create significant stress or frustration.
However, when environments are flexible and strengths are recognized, neurodivergent individuals often bring valuable perspectives, creativity, and problem-solving approaches that benefit the broader community.
Understanding neurodivergence as a natural form of human variation can shift the conversation away from simply asking how individuals should adapt to existing systems. It also invites us to consider how environments can evolve to support a wider range of cognitive styles.
For many people, discovering the concept of neurodiversity can be both empowering and relieving. Experiences that once felt isolating begin to make more sense, and differences that were once framed only as struggles can also be recognized as part of a broader spectrum of human minds.
If you’d like to learn more about this topic, I recommend the following sources:
Neurodiversity: Integrating evolutionary, philosophical, and sociocultural perspectives