Trump's authority to revoke California's waiver from federal clean air rules rests on a very shaky legal foundation.

A study suggests a potentially effective way to improve the cardiovascular health of poor and minority Americans: Give them a daily pill with low doses of several heart medicines.

An appeals court reinstates a lawsuit against Dignity Health for denying surgery to a transgender patient.

Who is to blame for the nation's deadly opioid epidemic? That's the question at the heart of MDL 2804, largest civil action in U.S. history.

The College Student Right to Access Act would require California public university students on-campus access to the "abortion pill." It's on Gov. Newsom's desk, and he should sign it.

Conditions in immigrant detention facilities are ideal for creating deadly flu strains.

Abortion rate falls by 20% from 2011 to 2017 across nation as Republican-led states pursue antiabortion regulations