Personality Trait Predicts Mental Health
Study Finds Neuroticism Marks Risk for Future Mental Disorders
A new, large-scale study confirms that a personality trait called neuroticism strongly predicts a person's risk for developing various mental health conditions later in life.
Researchers examined data from 59 studies involving over 443,000 people aged 14 to 104, tracked for up to 54 years.
They investigated how much an individual's level of neuroticism—a tendency to experience negative emotions like anxiety, worry, or sadness—contributes to the chances of developing mental disorders. The conditions reviewed included:
- Anxiety
- Depression
- Substance abuse
- Thought disorders
The scientists found that higher neuroticism was closely linked to future mental health problems.
Key Findings
For conditions like anxiety and depression, the initial link was very strong. However, when researchers accounted for any mental health symptoms participants already had at the start of the studies, that strong link became about half as powerful.
Even with these adjustments, neuroticism remained a significant predictor.
For substance abuse and thought disorders, the initial link was weaker, but it did not fade as much when past problems were considered.
Crucially, the study found this predictive power of neuroticism held steady over many years.
"High neuroticism indexes a risk constellation that exists prior to the development and onset of any CMD [common mental disorder]," the authors stated.
This means neuroticism acts as an early warning sign, pointing to vulnerabilities even before mental health issues fully manifest. Understanding this lasting connection matters greatly. It highlights that a person's general emotional makeup might play a role in their future mental well-being.
Implications for Early Support
This understanding could help direct efforts toward early support for individuals who show high levels of neuroticism, potentially lessening the severity or impact of future mental health challenges.
Limitations and Future Research
The study acknowledges that the various ways mental health and neuroticism were measured across different studies could affect some findings. Future research should explore the specific reasons why neuroticism holds this long-term predictive power, delving deeper into the underlying mechanisms.
This robust link underscores that personality traits, like neuroticism, offer vital clues in the complex story of our mental health.
Reference
Jeronimus, B. F., Kotov, R., Riese, H., & Ormel, J. (2016). Neuroticism's prospective association with mental disorders halves after adjustment for baseline symptoms and psychiatric history, but the adjusted association hardly decays with time: a meta-analysis on 59 longitudinal/prospective studies with 443,313 participants. Psychological Medicine, 46(13), 2883-2906. doi:10.1017/S0033291716001653