Common Chemical Exposure Linked to Multiple Sclerosis Risk

Long-term exposure to specific industrial chemicals may meaningfully increase the odds of developing multiple sclerosis

Topline

A large Swedish case-control study found that higher blood levels of certain PFAS and hydroxylated PCBs were associated with roughly a twofold increase in the odds of multiple sclerosis, with evidence that genetic susceptibility can amplify this risk.

Study Details

Multiple sclerosis is a chronic autoimmune disease affecting the central nervous sys…