Brain
Organ / systemThe control center — and one of the most energy-hungry, vulnerable organs to toxic and blast injury.
What toxicants do here
Several metals cross into the brain and disrupt the chemistry nerve cells use to signal. Manganese concentrates in the basal ganglia and can cause a Parkinson-like movement disorder; lead and mercury impair memory, focus, and mood.
This matters even more alongside blast/TBI: a brain already inflamed by a blast wave is less able to tolerate an added toxic-metal and neuroinflammatory load, and the symptoms can compound.
What targets it — tap to learn each one
Parkinson's is presumptive for Agent Orange and Camp Lejeune (TCE); TBI is claimed by direct service connection. Cognitive and mood symptoms are common in the Gulf War illness pattern.
Neuroinflammation doesn't stay put — it tangles with sleep, mood, and energy, and 'just getting older' rarely explains it. A neurological evaluation is the right step.
Bring this to your clinician and your VSO — they decide what testing and care, if any, is right for you. For general, whole-person ways to support your body, see Whole health.
Drafted from the government's and science's own record — VA presumptive lists (PACT Act, 38 CFR, Camp Lejeune), ATSDR ToxFAQs, IARC, and NTP. Sources are cited on every page, and this library has not yet been reviewed by a named clinician or toxicologist. This is documentation to bring to your clinician and VSO — not a diagnosis, a treatment plan, or a determination of service connection. Veterans Crisis Line: dial 988, then press 1.