Two studies demonstrate a link between Medicaid expansion and positive health outcomes, adding evidence to inform an ongoing policy debate.

Cancer incidence and mortality rates are on the decline in the U.S., but not for everyone. Socioeconomic disparities are widening.

People with chronic illnesses, mental health concerns, disabilities and the seasonal flu are less likely to vote.

This roundup brings together a sampling of recent studies that highlight health-related differences between rural and urban areas.

Rural-urban disparities in cancer outcomes recede for patients enrolled in clinical trials, a new study in JAMA Network Open finds.

What are the risks of formaldehyde exposure? And how much exposure constitutes a real risk? We review the research.

Many hair products used by black women and children contain unlisted chemicals that can interfere with the body’s natural hormones.

Dr. Lauren Wallner shares advice on how journalists might reconcile different research findings and how best to conceptualize the growing field of disparities research.

Thirty percent of women with breast cancer reported skipping additional treatment following surgery.

This collection of research and reports examines physician-assisted suicide in the U.S. and compares American policies and trends with those in Europe.