Nightmares are not just a spooky nuisance that disrupts your sleep; they may also have a significant impact on your health and longevity. A recent study has found that adults who experience bad dreams frequently are at a much higher risk of premature death compared to those who rarely have nightmares. In fact, individuals who suffer from nightmares every week were nearly three times more likely to die before the age of 75.
The study, which combined data from four large long-term studies in the US, followed over 4,000 participants aged between 26 and 74. Participants reported the frequency of nightmares disrupting their sleep at the beginning of the study. Over the next 18 years, researchers tracked premature deaths among the participants, with a total of 227 individuals passing away prematurely.
Even after accounting for common risk factors such as age, sex, mental health, smoking, and weight, individuals who experienced weekly nightmares still had a significantly higher risk of premature death. The study also looked at “epigenetic clocks,” which are chemical marks on DNA that indicate biological age. Those plagued by frequent nightmares were found to be biologically older than their actual age, as indicated by the epigenetic clocks used in the study.
The link between nightmares and premature death was partially attributed to faster aging, with continuous stress and poor sleep quality playing significant roles. Nightmares disrupt deep sleep, which is essential for the body’s repair and cellular maintenance processes. The stress response triggered by nightmares can lead to inflammation, elevated blood pressure, and accelerated aging by affecting chromosome integrity.
Previous research has also shown that frequent nightmares can be early indicators of neurological issues such as dementia and Parkinson’s disease. Given the prevalence of nightmares among adults, the findings suggest that addressing and treating nightmares could have significant public health benefits.
Therapeutic approaches such as cognitive behavioral therapy for insomnia and imagery-rehearsal therapy have shown promise in reducing nightmare frequency. By addressing the underlying causes of nightmares and improving sleep quality, individuals may not only extend their lifespan but also enhance the quality of their waking hours.
While the study has its limitations and awaits peer review, its robust methodology and compelling findings warrant further investigation. If confirmed by additional research, healthcare providers may consider incorporating inquiries about nightmares into routine check-ups to identify individuals at risk. By addressing nightmares early on, individuals may have the opportunity to improve their health outcomes and potentially add years to their lives.
This article is republished from The Conversation under a Creative Commons license. For more information, you can refer to the original article titled “Why frequent nightmares may shorten your life by years.”
