Why Toxicology Matters in the Search for ME/CFS
Understanding complex illnesses such as myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) requires moving beyond the idea of a single cause. Instead, it involves examining how multiple factors—genetic predisposition, immune system dynamics, and environmental exposures—interact to influence both disease onset and progression. Within this broader framework, toxicology—the study of how chemical and biological agents affect the body—plays a crucial role by helping to clarify how environmental exposures may contribute to or exacerbate illness. Insights from researchers such as Robert Sapolsky highlight how certain genes influence immune responses. One well-studied example is ERAP2 (endoplasmic reticulum aminopeptidase 2). This gene helps process protein fragments from pathogens inside immune cells and presents them to other parts of the immune system, triggering antibody production. Historically, specific variants of ERAP2 became more common in European populations followin...