Understanding Co-Occurring Anxiety and Depression
Anxiety and depression occur at meaningfully higher rates among autistic people and people with ADHD than in the general population. Understanding why this overlap is so common helps families and individuals get the right support, rather than treating every difficult moment as simply “part of the autism” or “part of the ADHD.”
How common is this, really
Research estimates that around 42 percent of autistic adults meet criteria for an anxiety disorder, and around 37 percent meet criteria for a depressive disorder, both substantially higher than rates in the general population. Adults with ADHD show a similar pattern, with over half reporting at least one co-occurring psychiatric condition, most commonly anxiety or depression.
Why the overlap is so common
Several factors contribute. Living in a world not built for how your brain works, repeatedly, over years, is genuinely stressful, and chronic stress is a well-established risk factor for both anxiety and depression. Masking, the effort of suppressing natural traits to fit in, adds another layer of sustained strain. For people diagnosed later in life, years of unexplained struggle before diagnosis can also contribute directly to the development of anxiety or depression, separate from the underlying neurodivergence itself.
Why it’s easy to miss
Symptoms of anxiety and depression can look different, and get explained differently, in neurodivergent people. Irritability, sensory overwhelm, or a meltdown might be the actual presentation of significant anxiety in a child who can’t yet name what they’re feeling. A teen described as “unmotivated” might be experiencing depression that’s being read instead as a character trait. This matters because anxiety and depression are treatable, while “personality” is something people are often told to simply accept.
Getting an accurate picture
If you suspect anxiety or depression alongside autism or ADHD, ask specifically for an evaluation that considers both together. A clinician unfamiliar with neurodivergence may misread genuine mental health symptoms as simply “how autism presents,” missing a treatable condition layered on top.
What helps
- Therapy with a clinician who has genuine experience with neurodivergent clients, since standard approaches sometimes need real adaptation to actually fit
- Reducing sustained masking where possible, since chronic masking is a documented contributor to both burnout and mental health symptoms
- Medication, when appropriate, which can be effective for anxiety and depression in neurodivergent people just as it can for anyone else
- Addressing the actual sources of chronic stress, sensory environment, unmet accommodation needs, social isolation, rather than only treating the anxiety or depression symptoms in isolation
The goal is accurate support, not erasing the difference
The aim here is not deciding that anxiety or depression is the “real” problem and autism or ADHD isn’t. Both can be true and real at the same time, and naming both clearly is what allows for support that actually addresses what’s happening, rather than treating one as an excuse to overlook the other.
Key words to know
Co-occurring (or comorbid) condition: A separate diagnosable condition present alongside another, such as anxiety alongside autism.
Chronic stress: Sustained, ongoing stress over time, a well-established contributor to the development of anxiety and depression.