Link Between Frequent Nightmares and Increased Mortality Risk Revealed

Helsinki, Finland - New research presented at the European Academy of Neurology (EAN) Congress 2025 has established a concerning link between frequent nightmares and an increased risk of early death, as well as accelerated biological aging. The study, led by Dr. Abidemi Otaiku from the UK Dementia Research Institute and Imperial College London, analyzed data from a substantial cohort of 183,012 adults aged 26 to 86 and 2,429 children aged 8 to 10 across six long-term population studies. The findings suggest that individuals experiencing weekly nightmares are more than three times likely to die prematurely, particularly before the age of 70, compared to those who rarely or never have such dreams.

The significance of this study lies in its revelation that nightmares independently predict faster biological aging, even after controlling for other health variables such as smoking, obesity, and physical inactivity. The data indicates that approximately 40% of the heightened mortality risk associated with frequent nightmares can be attributed to accelerated aging processes.

Dr. Otaiku explained, "Our sleeping brains cannot distinguish dreams from reality. Nightmares can trigger intense stress responses, which lead to elevated cortisol levels—a hormone linked to cellular aging. This cumulative stress, compounded with disrupted sleep quality, likely contributes significantly to the aging of our cells and bodies."

The study followed participants over a period of up to 19 years, allowing for a robust examination of the long-term implications of nightmare frequency on health outcomes. For children, nightmare frequency was reported by parents, while adults self-reported their experiences. Findings showed that even monthly nightmares correlated with increased biological aging and mortality risk, reinforcing the urgency of addressing nightmare prevalence in the population.

The implications of these findings extend beyond individual health concerns. Prof. Emily Carter, a psychologist at Stanford University and an expert in sleep disorders, noted, "The research underscores the need for public health initiatives aimed at improving sleep quality and addressing psychological stress, which may help mitigate the adverse effects of nightmares on health."

Moreover, the study's results have spurred discussions on mental health awareness. According to Dr. Samuel Lee, a psychiatrist at the University of California, San Francisco, "This research highlights the intersection of sleep health and mental health, revealing that nightmares are not merely benign sleep disturbances but potential indicators of broader health issues."

In terms of future research directions, experts suggest a closer examination of the biological mechanisms linking nightmares to aging and mortality. Dr. Otaiku emphasized the necessity for further studies to explore potential interventions that could reduce the frequency of nightmares, thereby improving overall health outcomes.

As the conversation around sleep disorders and their broader health implications continues, the findings presented at the EAN Congress serve as a clarion call for both researchers and healthcare professionals to prioritize sleep health as a critical component of public health strategies. Addressing nightmare frequency could prove vital in enhancing the quality of life and longevity for many individuals.

In conclusion, this groundbreaking research highlights the profound impact that sleep disturbances can have on long-term health. With nightmares showing a striking correlation to accelerated aging and increased mortality risk, it is essential for the healthcare community to consider sleep health as a pivotal area for intervention and study.