The human brain holds a staggering number of connections, yet scientists have long struggled to explain how it stores so much ...

The human brain contains about 86 billion neurons. These cells fire electrical signals that help the brain store memories and send information and commands throughout the brain and the nervous system.

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.

Recent work has revealed some of the many crucial functions of astrocytes, brain cells that were once thought to play primarily supportive roles for neurons. Astrocytes do handle debris around neurons ...

The human brain contains about 86 billion neurons. These cells fire electrical signals that help the brain store memories and send information and commands throughout the brain and the nervous system.

You can use up all the storage on your phone or max out your computer's drive, but can you use up all the memory space in your brain? Despite how you might feel before an exam or after a sleepless ...

Can You Overdo Fiber? The Rise—and Risks—of Fibermaxxing In some of his research, he and colleagues found that when people ...

Sleep loss selectively disrupts memory-related brain circuits and behavior, while caffeine restores synaptic plasticity and ...

Across 2026, The Brain Song reviews have ignited a new discussion inside the neuroscience community: can sound frequencies alone sharpen memory, boost focus, and help the aging brain stay alert? For ...