Coronavirus

A depiction of a synapse features two slender fibers that end in two cup-like structures facing each other, with many tiny dots in the space between the cups.

Making and breaking connections in the brain

The links between nerve cells, called synapses, allow us to learn and adapt, and hold clues to conditions such as autism, schizophrenia and more

A conceptual illustration shows heads of a girl (left) and a boy (right) viewed side on, as silhouettes. Their brains are depicted as colored swirls in blue (girl) and green (boy). Various molecules and cells are layered on the two brains to indicate differing immune-related functions and risks.

Health & Disease

Sex, immunity and the brain

Differences between the immune systems of males and females — in particular, ones involving cells called microglia — might help explain why the risk for conditions such as autism and Alzheimer’s varies between the sexes

Illustration of a knotted speech bubble coming from a man’s mouth.

The Mind

The new neuroscience of stuttering

After centuries of misunderstanding, research has finally tied the speech disorder to certain genes and brain alterations — and new treatments may be on the horizon

Illustration shows students running on a multiple-choice answer form as a giant pencil looms above

Society

Pencils down: The year pre-college tests went away

Many colleges and universities stopped requiring the SAT and ACT during Covid. Will they go back to testing in the future? Select: (a) Yes (b) No (c) Depends (d) Not enough information.

Photo shows Utah high school students returning to in-person learning in August 2020 during the Covid-19 pandemic. Students are seated far apart and wear face masks.

Society

A year of missing tests

Standardized tests for K-12 students were largely dropped during Covid, leaving a gaping hole in our understanding of students’ progress.

A young boy in a red-orange sweatshirt sits at a table in front of a laptop computer with his head in his hands. Other participants in a Zoom class are visible on the screen.

The Mind

Kids of the Covid generation: The road ahead

What will become of children growing up during the pandemic? There’s reason for concern, but the research on resilience is reassuring. A developmental psychologist explains what adults can do to protect youngsters from long-term harm.

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