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REM sleep

This shows a person sleeping and a brain.

Auditory Neuroscience Featured Neuroscience

·August 3, 2026·8 min read

Brain Turns Hearing Inward During REM Sleep

A new study reveals that during REM sleep, the brain turns its listening inward, suppressing external sounds while intensifying processing of heartbeats.

Featured Neuroscience

·July 29, 2026·8 min read

Why Vivid Dreams Leave You Feeling Exhausted

Researchers discovered a metabolic paradox during REM sleep: while brain blood volume and fuel supply increase, internal neuronal ATP levels decline.

Featured Neuroscience

·May 27, 2026·9 min read

Caffeine Destroys Deep Sleep Waves Without Altering Duration

A new study demonstrates that caffeine severely degrades the biological quality of sleep even when total sleep duration appears completely normal.

This shows a person sleeping, surrounded by vivid colors.

Featured Neuroscience

·March 24, 2026·7 min read

Immersive Dreaming is the Secret to Feeling Well-Rested

Immersive dreaming, rather than just slow-wave brain activity, is what makes us feel well-rested. Vivid, bizarre dreams provide a higher sense of sleep depth by better disconnecting the brain from the outside world.

Featured Neurology Neuroscience

·February 23, 2026·7 min read

Brain May Treat Seizures As Memories

The brain is a master at learning, but sometimes it learns the wrong things. Scientists find that sleep after a seizure acts as a "save button" for epilepsy.

This shows a brain and a person sleeping.

Featured Neurology Neuroscience

·September 27, 2025·6 min read

Sleep Disorders Predict Parkinson’s or Dementia Years Ahead

Two landmark international studies show that brain biomarkers can predict whether people with REM sleep behaviour disorder (iRBD) will develop Parkinson’s disease or dementia with Lewy bodies (DLB). MRI scans revealed that reduced glymphatic system function signals higher risk for Parkinson’s, while increased free water in the basal nucleus of Meynert predicts progression to DLB.

Featured Neuroscience

·September 8, 2025·3 min read

REM Sleep Reactivation Locks Memories in Place

Rare adult-born neurons in the hippocampus are reactivated during REM sleep, locking waking experiences into long-term memory. Using genetically modified mice, they found that these neurons fire in the same patterns during sleep as they did during learning.

Featured Neuroscience

·May 20, 2025·4 min read

Hitting Snooze Disrupts REM Sleep

Despite expert warnings, hitting the snooze button is a common part of many people’s morning routines. A large global study analyzing data from over 21,000 individuals found that snoozing occurred in 56% of sleep sessions, with heavy users snoozing for up to 20 minutes each morning.

This shows a woman sleeping and a brain.

Featured Neuroscience

·May 7, 2025·3 min read

Sleep Apnea May Harm Brain Areas Key to Memory

A new study has linked obstructive sleep apnea to brain damage in areas critical for memory, likely due to low oxygen levels during REM sleep. Researchers found that people with lower oxygen saturation during REM had more white matter hyperintensities—signs of small vessel damage—on brain scans.

Featured Neurology Neuroscience

·January 27, 2025·5 min read

REM Sleep Delays May Indicate Early Alzheimer’s

Delayed rapid eye movement (REM) sleep may be an early indicator of Alzheimer’s disease. Researchers found that participants with delayed REM sleep had higher levels of toxic proteins associated with Alzheimer’s and reduced levels of brain-derived neurotrophic factor (BDNF), which supports memory.

Featured Neurology Neuroscience

·October 18, 2024·3 min read

REM Sleep-Inducing Neurons Identified

Researchers have discovered two neuron types in the brainstem that induce REM sleep, shedding light on the mechanisms behind this crucial sleep phase. These neurons form circuits that control brain activity, eye movement, and muscle tone loss during REM sleep.

Featured Neuroscience

·September 23, 2024·4 min read

Melatonin Receptor is Key to REM Sleep and Memory

Scientists have identified the melatonin MT1 receptor as a key regulator of REM sleep, crucial for memory, dreaming, and emotional regulation. This discovery may pave the way for targeted treatments for sleep disorders and conditions like Parkinson’s and dementia, which are linked to REM disruptions.

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REM sleep

Brain Turns Hearing Inward During REM Sleep

Why Vivid Dreams Leave You Feeling Exhausted

Caffeine Destroys Deep Sleep Waves Without Altering Duration

Immersive Dreaming is the Secret to Feeling Well-Rested

Brain May Treat Seizures As Memories

Sleep Disorders Predict Parkinson’s or Dementia Years Ahead

REM Sleep Reactivation Locks Memories in Place

Hitting Snooze Disrupts REM Sleep

Sleep Apnea May Harm Brain Areas Key to Memory

REM Sleep Delays May Indicate Early Alzheimer’s

REM Sleep-Inducing Neurons Identified

Melatonin Receptor is Key to REM Sleep and Memory

How Severe Illness During Pregnancy Alters Fetal Brain Development

Aging Brains Maintain Robust Language Networks Despite Cognitive Decline

Youth Protein TIMP2 Restores Immune Function in the Aging Brain

Shame, Stigma, and Culture Prevent Male Domestic Violence Survivors From Seeking Help

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