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Retinal Ganglion Cells

Retinal ganglion cells are the conduit between the eyes and the brain.

BrainFacts/SfN

The Science of Dreams

Answer kids' questions about their dreams with a scientific perspective.

Frontiers for Young Minds

Are People Really "Morning Larks" or "Night Owls"?

Our sleep schedules aren’t simply personal preferences — they’re innate, biological predispositions that affect our physical and mental health.

BrainFacts/SfN

Is It Dangerous to Wake a Sleepwalker?

The idea that waking a sleepwalker could give them a heart attack or cause brain damage is a myth. But try not to wake them if you don’t have to.

BrainFacts/SfN

Can You Learn in Your Sleep?

Learning new information isn’t quite so easy as popping in headphones and passively listening to taped lectures while you slumber — not yet, anyway.

BrainFacts/SfN

Sleep Paralysis: The Night Hag

The terrifying experience is not paranormal activity but a common neurological phenomenon.

BrainFacts/SfN
3 min

Why Do Adolescents Go to Sleep Late?

Teens’ nocturnal lifestyles are more than a personal preference — dramatic hormonal changes during puberty alter the brain circuits that regulate sleep.

BrainFacts/SfN

To Sleep, Perchance to Be Less Hostile

Sleep deprivation puts the brain on high alert, unable to discern a well-natured grin from a threatening scowl.

BrainFacts/SfN

Resetting the Brain's Clock

Jet lag, irregular sleep schedules, and exposure to artificial light throw our internal clocks out of whack. When that happens, our health suffers.

BrainFacts/SfN

Syncing the Body's Clock

Sun-seeking brain cells keep the sleep cycle in balance.

BrainFacts/SfN

Summoning the Sandman

The release of the “vampire hormone” lets the body know when it’s time to sleep.

BrainFacts/SfN

The Fibers That Slow Down the Brain

Billionths of a meter thick yet tough as silk or steel, these unwanted threads are hard to destroy.

BrainFacts/SfN

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