I would add that many insecticides have physiological impacts similar to low levels of nerve agents if doses are repeated many times.
"Studies published since 2008 continue to support the conclusion that Gulf War illness is causally related to chemical exposures in the combat theater," White said of the new report. "And many studies of the brain and central nervous system, using imaging, EEG and other objective measures of brain structure and function, add to the existing evidence that central nervous system dysfunction is a critical element in the disorder. Evidence also continues to point to immunological effects of Gulf War illness."
Exposure to the nerve gas agents sarin and cyclosarin has been linked in several studies to changes in magnetic resonance imaging (MRI) that are associated with cognitive impairments -- further supporting the nervous-system effects of those agents cited in the 2008 report.
"The Committee concludes that the evidence to date continues to point to alterations in central and autonomic nervous system, neuroendocrine, and immune system functions," the report says.