In breast milk, toxic concentrations of "forever chemicals" have been discovered. How dangerous are they?

In Lyon, the third-largest city in France, PFAS chemicals have been found in potentially dangerous concentrations in nursing moms.

In our clothes, furniture, and air, "forever chemicals," or molecules recognised for their remarkable endurance in the environment, are nearly everywhere.

Most places in the globe, including environments like Antarctica, have them in rainwater, according to recent research from the Uni....