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After injecting moderate doses of the dissociative anesthetic into the animals, previously “awake” brain cells go dark, and those that had been dormant suddenly light up.

Dialing up the activity of a protein called SYK in the brain’s “janitors” could provide an avenue to treat Alzheimer’s and other neurodegenerative diseases.

The “tripledemic” shines a spotlight on viral interference, in which one infection can block another.

Warm nasal cells mount stronger defenses against cold-causing coronaviruses and rhinoviruses than those exposed to cooler temperatures, an in vitro experiment finds.

The eRNA detection method could one day be used to catch early warning signs of distress in wild ecosystems. 

Redondoviruses, which have been associated with cases of periodontitis and other diseases, turn out to live inside the amoeba Entamoeba gingivalis.

Parents’ mutations, even if they’re not inherited by offspring, could affect subsequent generations through changes to epigenetic marks, a study finds.

Pioneering nurse Florence Nightingale had an eye for creating memorable graphics that helped convince the general population that including sanitation reforms as part of public health policy would save British soldiers’ lives.

Researchers race to find ecological data kept on outdated media or in dusty backroom boxes—before they’re lost forever.

Open science serves to make the research process more transparent. But we are still waiting to realize the fruits of open-data policies at scientific journals.

Scientists studying pathogens such as Chlamydia, Legionella, and Listeria get a master class in how to control the internal workings of mammalian cells.

A decade-long, multicontinent study suggests that acoustic defense strategies are more common among moths than previously imagined.