Maladaptive daydreaming doesn’t have a single cause. It typically develops from a combination of childhood experiences, emotional coping patterns, and mental health conditions that together create a self-reinforcing cycle of immersive fantasy. An estimated 2.5% of the general population meets criteria for the condition, and while it isn’t yet recognized as a formal diagnosis in any major diagnostic manual, researchers have identified several clear patterns in what drives it.
Childhood Trauma and Dissociation
One of the strongest links researchers have found is between maladaptive daydreaming and early adverse experiences. A study of 717 participants, 106 of whom were identified as problematic daydreamers, found that certain types of childhood trauma occurred significantly more often in the maladaptive daydreaming group. Specifically, direct trauma types (abuse, neglect, witnessing violence) showed significant correlations with maladaptive daydreaming, while household dysfunction factors like parental divorce or substance use in the home did not.
The connection between trauma and daydreaming isn’t a straight line, though. The study found that dissociative experiences acted as a bridge between the two. People who experienced childhood trauma were more likely to develop patterns of identity confusion, fragmentation, and a feeling of losing control over their own mental processes. These dissociative tendencies, in turn, made them more likely to develop maladaptive daydreaming. The strongest trait among excessive daydreamers was something researchers call “absorption,” an intense capacity to become fully immersed in internal or external experiences. If you’ve ever been so lost in a fantasy that you didn’t hear someone calling your name, that’s absorption at a mild level. In maladaptive daydreamers, this trait is dramatically elevated.
Emotional Avoidance as a Coping Strategy
For many people, maladaptive daydreaming begins as a way to manage painful emotions. Research supports the view that immersive daydreaming functions as an emotion regulation strategy, one that allows people to reduce negative feelings and escape difficult perceptions of their real-life circumstances. Instead of confronting a painful memory or sitting with uncomfortable emotions, the daydreamer retreats into a vivid internal world where they can seek emotional support from imaginary characters or simply avoid what hurts.
This works, briefly. The pleasure and relief that daydreaming provides is real but short-lived, offering only momentary escape before the underlying distress returns. Over time, the person needs longer and more elaborate daydreaming sessions to achieve the same emotional relief. The pattern becomes self-reinforcing: real life feels increasingly unsatisfying compared to the rich fantasy world, which drives more daydreaming, which pulls the person further from addressing the problems that made them want to escape in the first place.
The Behavioral Addiction Cycle
Some researchers have proposed that maladaptive daydreaming functions like a behavioral addiction, similar in structure to compulsive gaming or internet use. The framework fits remarkably well. People with the condition describe their daydreaming in terms that mirror addiction: the fantasy becomes more important than almost anything else in their life (salience), they experience an arousing “buzz” or emotional high during episodes (mood modification), they need increasingly long sessions to feel satisfied (tolerance), they feel irritable or distressed when interrupted (withdrawal), and they experience inner frustration from avoiding real-world problems (conflict).
This addictive quality helps explain why people continue daydreaming even when they recognize it’s harming their relationships, work, or daily functioning. The rewarding nature of the experience creates intense yearning to return to it. For some individuals, daydreaming becomes intertwined with other compulsive behaviors like excessive video game use, internet browsing, or repetitive music listening, all of which can serve as triggers or fuel for elaborate fantasy scenarios.
ADHD and Other Overlapping Conditions
Maladaptive daydreaming rarely exists in isolation. People with the condition tend to meet criteria for several other mental health conditions, including depression, anxiety, and obsessive-compulsive spectrum disorders. But the most striking overlap is with ADHD: in one study that conducted full psychiatric assessments, nearly 77% of people with maladaptive daydreaming also met diagnostic criteria for ADHD.
This overlap makes sense when you consider that both conditions involve difficulties with attention regulation. However, researchers emphasize that the two are not the same thing. In ADHD, the mind wanders because it struggles to sustain focus on unstimulating tasks. In maladaptive daydreaming, the mind is pulled toward fantasy because the fantasy itself is intensely rewarding and absorbing. A person with ADHD drifts away from a boring meeting. A person with maladaptive daydreaming is actively drawn into a vivid, emotionally engaging internal storyline they may have been developing for years. Many people have both conditions, but the mechanisms driving each are distinct.
OCD also shows up at elevated rates. In one study, about 10% of people with maladaptive daydreaming had obsessive-compulsive disorder, compared to 0% of controls. The compulsive quality of the daydreaming, feeling driven to continue even when you want to stop, shares features with OCD’s intrusive, repetitive patterns.
What Happens in the Brain
The brain science of maladaptive daydreaming is still in early stages, and the findings so far have been more surprising than expected. Researchers initially hypothesized that people with maladaptive self-focused attention would show overactivity in the brain’s default mode network, the set of regions that activates during mind-wandering, self-reflection, and imagining hypothetical scenarios. That hypothesis didn’t hold up. Studies found no evidence of increased connectivity within the default mode network in people with maladaptive self-focused conditions compared to healthy controls.
What researchers did find was reduced connectivity between a key hub of the default mode network (the posterior cingulate cortex) and regions involved in body awareness, spatial attention, and sensory processing. This reduced connectivity correlated with higher levels of maladaptive self-focus. In practical terms, this could mean that the brain regions responsible for keeping you grounded in your physical environment are less connected to the regions generating your internal narrative. The result: it becomes easier to lose yourself in fantasy and harder to stay anchored in what’s happening around you.
How These Causes Interact
No single factor on this list is sufficient to cause maladaptive daydreaming on its own. Many people experience childhood trauma without developing the condition. Many people with ADHD never build compulsive fantasy worlds. The condition seems to emerge when several of these factors converge: a naturally high capacity for absorption, some form of emotional pain or unmet need, and a discovery (often in childhood) that vivid daydreaming provides a powerful escape. Once that pattern takes hold, the addictive cycle reinforces it, and any co-occurring conditions like ADHD or anxiety make it harder to break free.
If you recognize these patterns in yourself, the 16-item Maladaptive Daydreaming Scale is a validated screening tool. Scores above 40 on this scale suggest the presence of maladaptive daydreaming. It’s worth noting that in population screening, about 4.2% of people initially exceed the cutoff for suspected maladaptive daydreaming, but when those individuals undergo clinical interviews, only about 60% actually meet full criteria for the condition. Some degree of vivid, even frequent daydreaming is normal. It crosses into maladaptive territory when it causes significant distress, consumes hours you didn’t intend to spend, and interferes with your ability to function in daily life.