What This Means
This research studied the health of over three million active-duty U.S. military service members, comparing those who worked in jobs with high risk of exposure to blast overpressure (such as from explosions, artillery, or heavy weapons) to those who did not. The study tracked new diagnoses of six health conditions: traumatic brain injury, insomnia, migraine headache, depression or anxiety, noise-induced hearing injury, and high blood pressure. The researchers found that service members in high-risk blast exposure jobs developed traumatic brain injury and noise-induced hearing injury at significantly higher rates — about 43% and 39% higher, respectively — even after accounting for differences in age, sex, and other characteristics between the groups.
The study also found that the longer service members spent in high-risk blast-exposure occupations, the greater the gap in migraine headache rates became between those in high-risk versus low-risk jobs. This suggests that the effects of repeated blast exposure on migraine risk may build up over time rather than appearing all at once. Interestingly, despite these specific differences in certain diagnoses, the overall health care burden — as measured by 2024 medical visits — was similar between the two groups.
This research suggests that working in military occupations with frequent blast exposure carries meaningful long-term health risks, particularly for brain injury, hearing loss, and migraines. The findings point to the importance of better protecting service members from blast hazards during both training and deployment, and of monitoring the health of those in high-risk roles over the long term to catch problems early.