Drugmakers claim that broad state PFAS laws are overly burdensome. But environmental health experts aren’t convinced.

Longstanding regulatory and testing gaps have historically been filled by third-party groups with questionable methods.

A massive Swedish study examined hormonal birth control risks. But the nuances of such studies get lost on social media.

In "Planning Miracles," Jon Cohen chronicles the efforts of scientists and others to eradicate the threat of pandemics.