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Sleep

This shows a person floating in a dream.

·February 19, 2025·5 min read

Why Some People Remember Dreams and Others Don’t

A new study explores why some people vividly recall dreams while others forget them. Researchers found that dream recall is influenced by personality traits, sleep patterns, and even seasonal changes. People who frequently daydream and have a positive attitude toward dreams were more likely to remember them.

Featured Neuroscience

·February 6, 2025·5 min read

Sleep Strengthens Emotionally Charged Memories During Non-REM Phase

Researchers have discovered that positive emotions enhance perceptual memories during sleep, particularly in the non-REM stage. Using mice, they found that memories linked to rewarding experiences lasted longer than neutral ones.

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 Neuroscience

·January 8, 2025·4 min read

Sleep Loss Weakens Brain’s Ability to Block Unwanted Memories

New research reveals that sleep deprivation hampers the brain’s ability to suppress intrusive memories, a process critical for mental health. The study found that well-rested individuals could engage the right dorsolateral prefrontal cortex to inhibit unwanted memories, while sleep-deprived participants struggled.

Featured Neuroscience

·January 8, 2025·5 min read

Deep Sleep Drives Brain’s Waste Clearance, Aiding Cognitive Health

Deep sleep may clear the brain of toxic waste via a process driven by norepinephrine, a molecule that creates rhythmic blood vessel contractions. This "brainwashing" system, part of the glymphatic system, helps remove harmful proteins linked to neurological disorders.

This shows a clock and people sleeping in an office.

Featured Neuroscience

·January 8, 2025·4 min read

Workplace Habits That Put Your Sleep at Risk

A study of over 1,000 employees found that sedentary jobs and nontraditional work schedules significantly increase the risk of insomnia symptoms and disrupted sleep patterns. Sedentary workers experienced a 37% rise in insomnia symptoms, while those with nontraditional schedules were 66% more likely to need “catch-up sleep,” such as weekend oversleeping or frequent naps.

This shows a woman sleeping and a brain.

Featured Neuroscience

·January 7, 2025·5 min read

Short-Term Rhythms Shape Sleep Spindles and Brain Health

Sleep spindles—brief bursts of brain activity crucial for memory and sleep stability—are guided primarily by short-term timing patterns lasting less than 15 seconds. Researchers found these patterns are highly individualized, consistent across nights, and change with age, outweighing the influence of other factors like brain rhythms or sleep depth.

Featured Neuroscience Visual Neuroscience

·January 5, 2025·6 min read

Pupil Dynamics During Sleep Reveal Brain’s Memory-Saving Secrets

Researchers have discovered that pupil size during non-REM sleep correlates with memory consolidation. When pupils contract, the brain focuses on consolidating new memories; when dilated, it processes older ones.

Featured Neuroscience Psychology

·January 2, 2025·4 min read

Poor Sleep Linked to Difficulty Controlling Unwanted Thoughts

Sleep deprivation impairs brain regions responsible for suppressing unwanted thoughts, contributing to mental health challenges. Functional neuroimaging revealed reduced activation in the prefrontal cortex and increased hippocampal activity in sleep-deprived individuals, suggesting memory control deficits.

Featured Neuroscience

·December 17, 2024·4 min read

Breathing Rhythms During Sleep Strengthen Memory Consolidation

New research shows that breathing rhythms during sleep synchronize brain waves in the hippocampus, a region essential for memory consolidation. These brain waves—slow waves, spindles, and ripples—occur at specific points in the breathing cycle, suggesting breathing plays a key role in memory processing.

Featured Neuroscience

·December 12, 2024·6 min read

Slow-Wave Sleep Optimizes Memory Formation

New research shows that slow-wave sleep strengthens synaptic connections in the neocortex, making it more receptive to long-term memory formation. Researchers found that during deep sleep, synapses in the neocortex reach peak efficiency at precise moments within slow-wave oscillations.

Featured Neuroscience

·December 10, 2024·7 min read

How Sleep Shapes Our Brain’s Mental Navigational Maps

A new study reveals how the brain forms cohesive mental maps of spaces and highlights the critical role of sleep in this process. While "place cells" in the hippocampus mark specific locations, weaker spatial cells stitch these points into a comprehensive cognitive map.

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Sleep

Why Some People Remember Dreams and Others Don’t

Sleep Strengthens Emotionally Charged Memories During Non-REM Phase

REM Sleep Delays May Indicate Early Alzheimer’s

Sleep Loss Weakens Brain’s Ability to Block Unwanted Memories

Deep Sleep Drives Brain’s Waste Clearance, Aiding Cognitive Health

Workplace Habits That Put Your Sleep at Risk

Short-Term Rhythms Shape Sleep Spindles and Brain Health

Pupil Dynamics During Sleep Reveal Brain’s Memory-Saving Secrets

Poor Sleep Linked to Difficulty Controlling Unwanted Thoughts

Breathing Rhythms During Sleep Strengthen Memory Consolidation

Slow-Wave Sleep Optimizes Memory Formation

How Sleep Shapes Our Brain’s Mental Navigational Maps

How Scientists Cracked the Ketamine Code for Depression

Brain Prioritizes “Sound Offsets” During Hearing Repair

Glucose Levels Signal the Growth of Myelin

Why Your Brain “Dreams” Even When You’re Awake

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