A high-salt diet suppressed the growth of tumors in a mouse model of melanoma, apparently because of an interplay between the gut microbiome and natural killer cells.

Prolonged exposure to morphine triggers cells in the spine to release signaling molecules that increase pain sensitivity and dull the relief of the drug. Blocking this activity could improve pain management.

In both a mouse model and the hospital records of more than 3 million children, researchers found a connection between strong immune activation in males and later symptoms of autism spectrum disorder.

President Biden’s planned rollout of additional COVID-19 vaccine doses is set to begin next week, but questions remain about who should get them.

The study aims to recruit 40,000 adults and children to get a better sense of the condition that can last weeks or months after infection.

The results reveal evolutionary relatives of the Cas9 enzyme now used extensively in biotechnology.

Worms, flies, and yeast live longer if the fidelity of their protein-making machinery is improved, a study shows.

Ethologist Jan Langbein and his team trained the cattle as a way to keep solid and liquid cattle waste separate—with the goal of reducing ammonia emissions coming from livestock.

A full beard can absorb nearly 40 percent of the shock from a punch to the face, according to one winning study.

Some Louisiana research centers lost samples and reagents, and with power only just now being restored, there’s a long road ahead to full recovery.

The organization implored nations to wait on booster shots until the global vaccination rate increases, but several of the world’s more well-off countries have expressed their intentions to offer them regardless.

Mice lacking irisin didn’t exhibit the cognition improvements that typically follow exercise, and in mouse models of Alzheimer’s disease, treatment with the hormone reduced cognitive decline.

Many scientists have turned to preprints to rapidly disseminate their research on COVID-19, but some disagree with this approach.

Long-term administration of the antidepressant fluoxetine was tied to decreased concentrations of about 100 different brain lipids in adolescent macaques, hinting at a potential mechanism underlying the drug’s rare but severe side effects.

Shoring up the tissues that separate neurons and other brain cells from the circulatory system in fruit flies and mice can prolong life in the presence of a tumor.

Research on microneedle patches for vaccine delivery has grown in popularity in recent years, due to their exceptional compliance and low invasiveness.

As fires blanket growing swathes of the West, scientists are beginning to understand more about how their smoke affects the transmission and severity of COVID-19 and other illnesses, and how it differs from that of other types of air pollution.

The Scientist spoke with Rachel Zeig-Owens, the director of epidemiology for the World Trade Center Health Program, about what scientists have learned after two decades of studying illness and disease among survivors.

The SARS-CoV-2 variant was first detected in January, but its rising prevalence and potential resistance to vaccines has garnered it special attention from the World Health Organization.