New research from the University of Minnesota shows that stress caused by negative interactions with police can increase epigenetic age, which is a biological indicator that can differ from chronological age. Previous research has shown this stress can age adults more quickly, but few studies have studied increased epigenetic aging in children.
The study, published in JAMA Pediatrics, found that negative police encounters were associated with greater epigenetic age acceleration, especially among Black youths who experienced more police intrusion than any other racial or ethnic group.
Key findings include:
- Epigenetic age acceleration for Black youth is partly attributable to negative police encounters, such as racial slurs and stop-and-frisks.
- Black youth experienced more types of police intrusion than white youths.
- Negative police encounters occurred as early as 8 years old and, on average, 13 years old.
- White youth experienced the lowest rates of accelerated epigenetic aging.
"Aging is a natural process in human life, but more rapid aging is associated with many negative health outcomes, including a higher mortality rate," said Juan Del Toro, an assistant professor in the U of M College of Liberal Arts and lead author. "Emerging evidence suggests we can slow down epigenetic aging, and we hope to contribute to that research moving forward for better health outcomes long-term."
Future research will explore strategies to slow epigenetic age acceleration among ethnically and racially minoritized communities, and will focus on addressing interpersonal and structural discrimination in policing.
Research is supported by the National Institutes of Health.
About the College of Liberal Arts
For more than 150 years, the College of Liberal Arts has played a central and enduring role in shaping lives, for the good of Minnesota and the world. CLA is the largest college in the University of Minnesota system with nearly 500 world-class faculty instructing more than 12,000 undergraduate and 1,400 graduate students. CLA is home to 31 academic departments and 20+ interdisciplinary research centers in the arts, social sciences, and humanities. Learn more at cla.umn.edu.
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The University of Minnesota Medical School is at the forefront of learning and discovery, transforming medical care and educating the next generation of physicians. Our graduates and faculty produce high-impact biomedical research and advance the practice of medicine. We acknowledge that the U of M Medical School is located on traditional, ancestral and contemporary lands of the Dakota and the Ojibwe, and scores of other Indigenous people, and we affirm our commitment to tribal communities and their sovereignty as we seek to improve and strengthen our relations with tribal nations. Learn more at med.umn.edu.
About the College of Education and Human Development
The University of Minnesota College of Education and Human Development strives to teach, advance research and engage with the community to increase opportunities for all individuals. As the third largest college on the Twin Cities campus, CEHD research and specialties focus on a range of challenges, including: educational equity, teaching and learning innovations, children's mental health and development, family resilience, and healthy aging. Learn more at cehd.umn.edu.
