Scientists have uncovered a surprisingly large reserve of “silent synapses” in the adult brain—unused neural connections that can be rapidly activated to store new memories.

A wave of spatial transcriptomics studies has produced gene-expression atlases that span entire organs and whole organisms, from mouse embryos to the roundworm C. elegans to 31 human tissues. These ...

What most people think of when they hear the word "dementia" is memory problems and forgetfulness. But what people often don't know is that dementia can cause many different symptoms—affecting speech, ...