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Performing complex cognitive tasks leads to glutamate accumulating in a key region of the brain, a study finds, which could explain why mental labor is so exhausting.

A paper argues that the evolutionary loss of a thin vocal membrane in the larynx may have facilitated oral communication.  

Here’s what we know so far about a new virus detected in eastern China.

Studies show that a fourth mRNA vaccine dose offers the elderly and other high-risk groups strong protection against hospitalization and death from COVID-19, but experts say benefits for other populations may be more limited.

Alysson R. Muotri discusses his launch of brain organoids into outer space and how microgravity enriches our understanding of brain development and disease.

Parts of Southeast Asia where human and bat population densities are highest could be infection hotspots, a study finds.

The announcement confirms earlier reports that Bertagnolli will become the first woman to lead the National Cancer Institute since its founding in 1937.

By linking blood flow patterns to bioelectric signals in the brains of sleeping volunteers, scientists are studying the order in which brain regions fall asleep and wake up.

Lizards born to parents that experienced persistent heat had shortened telomeres, a genetic weathering that typically happens with age but can also be exacerbated by stress.

Of the pathogens known to have infected humans, more than half may cause more widespread disease as a result of rising temperatures, precipitation changes, or other climate-related factors, a study finds.

Controlling a growing tissue’s shape achieves deterministic and uniform patterning in intestinal organoids.

The Scientist asks Brigham and Women’s Hospital infectious disease specialist Lindsey Baden about testing for prior infections.