The Potential Link Between Nightmares and Increased Mortality Risk

Recent research suggests that frequent nightmares may pose a serious health risk, potentially increasing the likelihood of early death and accelerating biological aging. A study presented at the European Academy of Neurology's annual meeting found that individuals experiencing frequent nightmares have a threefold higher risk of dying prematurely, particularly before age 70. These nightmares also correlate with signs of faster cellular aging, which is measured by the shortening of telomeres—protective DNA structures at chromosome ends that diminish as cells age.

The heightened stress induced by intense nightmares triggers a fight-or-flight response during sleep, causing physiological reactions like sweating, rapid heartbeat, and gasping, which can persist into wakefulness. Over time, such repeated stress responses may lead to prolonged elevations of cortisol, a stress hormone linked to faster cellular deterioration.

Researchers analyzed data from over 2,400 children and 183,000 adults across the U.S., assessing their biological age through telomere length. The findings reveal that frequent nightmares are associated with a marked acceleration of biological aging, explaining roughly 40% of the increased risk of death. Interestingly, even monthly nightmares, not just daily or weekly, were linked to similar risks regardless of age, gender, or mental health status.

The study emphasizes that nightmares are a modifiable condition. Preventive measures include avoiding frightening movies, practicing good sleep hygiene, managing stress, and seeking treatment for anxiety or depression when necessary. Sleep specialists can provide additional help for persistent nightmares unresponsive to lifestyle changes.

These findings highlight the importance of recognizing and addressing nightmares not only for mental well-being but also for their potential impact on physical health and longevity.

Source: https://medicalxpress.com/news/2025-06-nightmares-slowly-death.html