Short Wave How Two Veterans Developed The Same Rare Brain Condition
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Jan 7, 2025 
In this insightful discussion, John Hamilton, NPR's brain correspondent, dives into the stories of veterans William Wilcox and Michael Lozano, who both developed arteriovenous malformation (AVM) after serving as tow gunners. They explore how powerful military weaponry may change gene expression, leading to neurological issues. The conversation highlights the devastating effects of AVM, the personal struggles of these veterans, and Lozano’s impactful work in equine therapy, illustrating the ongoing battle between service and health crises.
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Wilcox's AVM
- William Wilcox, a Marine gunner, experienced severe headaches after training exercises involving heavy weapons.
- Years later, a brain hemorrhage revealed an arteriovenous malformation (AVM), requiring emergency surgery and causing lasting health issues.
Lozano's AVM
- Michael Lozano, another Marine gunner, suffered headaches, PTSD, and memory problems after serving in Iraq.
- Doctors diagnosed him with an AVM, similar to Wilcox's, which required surgery and affected his memory.
Blast Waves and AVMs
- While most AVMs are attributed to genetic factors, recent studies suggest a potential link between blast waves and genetic alterations in the brain.
- Research indicates that repeated exposure to blast waves can damage blood vessels, potentially contributing to AVM formation.