How Witnessing Violence Can Alter Your Genome: The Epigenetic Impact of Trauma

Recent research has unveiled that witnessing violence doesn't just leave psychological scars—it can lead to epigenetic changes in your genome, potentially affecting not only your health but also that of future generations . This groundbreaking study highlights the profound impact of trauma on genome function, emphasising the intricate interplay between our environment and genetic makeup.​

🧬 Understanding Epigenetics and Trauma

Epigenetics refers to modifications in gene expression without altering the DNA sequence itself. These changes can be influenced by environmental factors, including traumatic experiences. The study in question focused on Syrian refugees across three generations, revealing that traumatic events experienced by grandmothers led to measurable epigenetic alterations in their descendants .​

🔄 Intergenerational Transmission of Trauma

One of the most compelling findings is the concept of intergenerational trauma. Children and grandchildren of individuals who witnessed violence exhibited epigenetic markers associated with stress responses, despite not experiencing the trauma firsthand. This suggests that the effects of trauma can be biologically inherited, influencing the health and well-being of subsequent generations .​

🧠 Implications for Mental and Physical Health

These epigenetic changes have been linked to various health issues, including increased susceptibility to mental health disorders like anxiety and depression, as well as physical conditions such as cardiovascular disease. Understanding the genetic health implications of trauma underscores the importance of early intervention and support for those exposed to violence.​

🧬 CircleDNA's Role in Personalised Health Insights

At CircleDNA, we recognise the significance of epigenetics in shaping individual health profiles. Our comprehensive DNA testing services provide insights into how your genetic makeup may influence your response to environmental factors, including trauma. By understanding your unique genetic predispositions, you can make informed decisions to mitigate potential health risks.​

📚 References

Bonior, A. (2025, March 28). Witnessing Violence Can Change Your Genome. Psychology Today. Retrieved from https://www.psychologytoday.com/us/blog/friendship-20/202503/witnessing-violence-can-change-your-genome