"What We Have Learned So Far It is important to note that there are thousands of variations in PFAS chemicals, which can make them hard to study. But the resea

"What We Have Learned So Far It is important to note that there are thousands of variations in PFAS chemicals, which can make them hard to study. But the research conducted to date reveals possible links between human exposures to certain PFAS and some adverse health outcomes. These health effects include: Altered metabolism and body weight regulation, and risk of childhood obesity. Increased risk of some cancers. Reduced ability of the immune system to fight infections." https://www.niehs.nih.gov/health/topics/agents/pfc https://www.niehs.nih.gov/health/topics/agents/pfc