Children exposed to violence and abuse likely to age faster, new Harvard study reveals.

By on August 13, 2020

Recently published findings (Psychology Bulletin) by researchers at Harvard University suggest that an adversity or trauma, abuse, experienced by a child results in accelerated puberty and health issues later in life.

Dr. Katie McLaughlin, co-author of the research and associate professor of psychology at Harvard, says “There are also clear practical implications for these findings. Exposure to adversity in childhood is a powerful predictor of health outcomes later in life — not only mental health outcomes like depression and anxiety but also physical health outcomes like cardiovascular disease, diabetes, and increased risk of cancer.”

In comparison to deprivation, poverty, or emotional neglect, researchers found threat-related trauma produced a much stronger change in the body. “Psychosocial interventions that protect children from the harmful effects of such adversity might be able to slow this process of aging, but is a field that requires further research,” said McLaughlin.

Researchers also found children who experienced abuse and violence had shortened telomeres, the caps at the end of our DNA that starts to deteriorate with age. They also found children who experienced violent adversity early in life had reduced cortical thickness, which is another sign of aging manifesting in the brain.

These, according to McLaughlin, might be evolutionary processes that developed to help children adapt to adversity as they age. Aging of the brain, for example, could signal faster development of certain regions in the brain that strengthened, accelerated emotional processing of trauma, helping children identify and respond to threats faster, even at a young age. The fact that we see such consistent evidence for faster aging at such a young age suggests that the biological mechanisms that contribute to health disparities are set in motion very early in life. This means that efforts to prevent these health disparities must also begin during childhood,” McLaughlin added.

 

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