Although the science is unsettled, the White House has embraced core tenets of the 'sperm count decline hypothesis.' ...

Former EPA scientists who responded to emergencies are now in the private sector. What does that mean for future crises?

Hidden Guests” explores how the emerging field of microchimerism is upending medicine, genetics, and our sense of self.

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

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

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.

An analysis of federal data shows a pronounced decline, despite alarming conditions found at some manufacturers.

It was thought that Aedes aegypti could not survive in the Mountain West. But now, a population is thriving in Colorado.