Medicine

The common pain reliever is safe when used as directed, research shows. But scientists remain puzzled by one aspect: how it reduces pain and fever

Former CDC chief Susan Monarez testified that Secretary of Health and Human Services Robert F. Kennedy, Jr., had demanded she rubber-stamp recommendations from his remade vaccine panel

A study in mice and on human blood uses a new protein to snag carbon monoxide before it latches onto blood cells

A childhood health report led by RFK, Jr., links poor diet, chemicals, inactivity and “overmedicalization” to worsening U.S. pediatric health

West Coast states are forming their own vaccine compact as Florida announces plans to ditch shot requirements for schoolchildren

A machine-learning algorithm spotted signs of “covert consciousness” in coma patients—in some cases, days before doctors could do so

Surgeons think the first transplantation of a pig lung in a human is an exciting step forward for the field, but many questions remain open

Scientists treated a person’s type 1 diabetes with genetically modified insulin-producing cells that evaded immune system attacks. This is the first therapy for the condition that does not require immunosuppressant drugs

In honor of SciAm’s 180th birthday, we’re spotlighting the biggest “wait, what?” moments in science history.

Peanut allergies more than tripled in U.S. kids between the late 1990s and late 2000s, and the prevalence has risen even more since then. Scientists are still searching for answers—and new ways to treat them.

Experts say the painful infection, spread to people from mosquitoes, can get to many countries if it finds the right hosts

New research is revealing how disease-smelling dogs can excel