People who feel and process the world more deeply are significantly more likely to experience mental health difficulties. A systematic review and meta-analysis led by researchers at Queen Mary University of London and the University of Surrey, published in Clinical Psychological Science, analyzed 33 studies and found a moderate but consistent link between high sensitivity and conditions such as depression and anxiety.
For decades, psychologists have known that personality traits like neuroticism influence mental health. But sensitivity, sometimes called sensory-processing sensitivity, has often been overlooked. This trait reflects how strongly people react to environmental and emotional cues, whether it is bright lights, subtle changes in surroundings, or other people’s moods. Roughly one in three people are thought to be highly sensitive, according to prior research.
The new study examined over 12,000 participants worldwide, confirming that higher sensitivity correlates not only with depression and anxiety but also with post-traumatic stress disorder, social phobia, agoraphobia, obsessive-compulsive disorder, and avoidant personality disorder. The effect was particularly robust for depression (r = .36) and anxiety (r = .39), both statistically significant findings.
“This is the most extensive systematic review on sensitivity and mental health in adolescents and adults to date, and is the first ever meta-analysis on the topic to estimate the impact of this relationship,” said Tom Falkenstein, psychotherapist and PhD student at Queen Mary University of London. “Our findings suggest that sensitivity should be considered more in clinical practice which could be used to improve diagnosis of conditions.”
Importantly, the researchers emphasize that sensitivity is not only a risk factor. Highly sensitive people also respond more strongly to supportive experiences, including therapy. As Professor Michael Pluess of the University of Surrey explained, “It is important to remember that highly sensitive people are also more responsive to positive experiences, including psychological treatment.” This dual role means that while sensitivity increases vulnerability to adversity, it can also increase the benefits of targeted interventions like mindfulness and cognitive-behavioral therapy.
The findings carry practical implications for mental health care. Clinicians could improve outcomes by identifying sensitivity early and tailoring treatment accordingly. Techniques such as applied relaxation, mindfulness, and emotion-regulation training may be especially effective for sensitive individuals. As Falkenstein noted, around 31% of the general population fall into this group, suggesting sensitivity-based approaches could help a substantial number of patients.
Still, the authors caution that most of the reviewed studies relied on self-reported surveys and non-clinical samples, often of young women. More diverse longitudinal and clinical research is needed to determine how sensitivity interacts with mental illness over time, and whether it should be formally integrated into diagnostic frameworks.
This work marks a turning point in recognizing sensitivity as a key factor in understanding mental health. If embraced in practice, it may not only sharpen diagnosis but also open the door to more personalized, effective care for those who experience the world most intensely.
Clinical Psychological Science, August 16, 2025. DOI: 10.1177/21677026251348428
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