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Sleep

·April 10, 2025·5 min read

Sleep Strengthens Memory for Life Events Over a Year Later

New research reveals that a single night of sleep can enhance memory for the order of real-world experiences—lasting for over a year. In a unique study, participants took an immersive art tour and were later tested on their memory of both object features and event sequences.

This shows a person in bed and a tablet.

Featured Neuroscience

·April 2, 2025·6 min read

Screen Time in Bed Linked to Less Sleep, Higher Insomnia Risk

A new study of over 45,000 young adults found that using screens in bed increases the risk of insomnia by 59% and cuts sleep by 24 minutes. Surprisingly, the type of activity—whether social media, movies, or studying—didn’t make a difference; it was the screen time itself that mattered most.

This shows a brain and a woman on a cell phone.

Featured Neuroscience

·March 31, 2025·8 min read

How Sleep, Emotion, and Novelty Shape Memory

New research highlights how smartphones are transforming memory science by capturing real-world data on sleep, emotion, and daily experiences. Studies show that replaying memories before sleep, experiencing novel events, and feeling positive emotions can all strengthen autobiographical memory.

Featured Neurology Neuroscience

·March 31, 2025·5 min read

Less Deep Sleep Linked to Brain Shrinkage, Alzheimer’s Risk

New research shows that reduced time in slow wave and REM sleep is associated with smaller brain volumes in regions vulnerable to Alzheimer’s disease. Using sleep studies and brain imaging data from 270 participants, researchers found that poor sleep architecture was linked to brain atrophy over time—particularly in the inferior parietal region, an area affected early in Alzheimer’s.

Featured Neuroscience

·March 25, 2025·6 min read

How Sleep Rewrites the Brain to Strengthen and Optimize Memories

A new study reveals how the brain reprocesses and refines memories during sleep, particularly those related to spatial learning. Researchers tracked rats’ hippocampal neuron activity for up to 20 hours and found that memory patterns first echoed the learning phase and then gradually shifted to match the recollection phase upon waking.

Featured Neuroscience Open Neuroscience Articles

·March 21, 2025·4 min read

Sleep-Deprived Fruit Flies Show Sharper Memory via PKA Signaling

Fruit flies with genetic mutations that severely reduce sleep show enhanced performance in olfactory memory tasks, challenging assumptions about sleep’s role in cognition. This paradox appears to be driven by increased protein kinase A (PKA) signaling in the mushroom body, a brain region responsible for memory and sleep regulation.

Featured Neurology Neuroscience

·March 20, 2025·3 min read

Changes in Sleep Patterns Could Predict Dementia Risk

A new study finds that women in their 80s who develop increasing daytime sleepiness over five years are twice as likely to develop dementia. Researchers tracked 733 women without cognitive impairment, using wrist devices to monitor sleep and circadian rhythms.

This shows two people awake at night on their phones.

Featured Neuroscience Psychology

·March 19, 2025·3 min read

Higher Depression Risks for Night Owls

A new study finds that staying up late, known as having an “evening chronotype,” is associated with a higher risk of depression. Researchers analyzed data from 546 university students and found that this link is influenced by sleep quality, alcohol consumption, and mindfulness levels.

Featured Neuroscience

·March 11, 2025·4 min read

Poor Sleep Linked to Brain’s Waste-Removal Breakdown

A new study reveals that poor sleep in older adults disrupts the brain’s glymphatic system, responsible for clearing harmful waste and toxins. Researchers found that compromised sleep quality leads to dysfunction in this crucial system, potentially increasing risks for memory decline and cognitive impairments.

Featured Neuroscience

·March 5, 2025·5 min read

Sleeping With Eyes Open: How Pupil Size Reveals Brain Activity

A new study reveals that pupil size fluctuates constantly during sleep, reflecting changes in brain activation levels. Researchers developed a novel method to keep test subjects' eyes open, allowing them to monitor these dynamics without disrupting sleep.

Featured Neurology Neuroscience

·March 3, 2025·6 min read

Sleep Brain Waves Linked to Consciousness in Coma

A new study finds that sleep spindles—bursts of brain activity during sleep—may predict recovery in unresponsive patients with recent brain injuries. Researchers analyzed EEG recordings of 226 comatose patients and found that those with sleep spindles were significantly more likely to regain consciousness and functional independence.

This shows a man, immune cells and a bed.

Featured Neuroscience

·February 24, 2025·5 min read

Poor Sleep Alters Immune Cells, Increasing Risk for Inflammatory Diseases

A new study reveals that even a single night of sleep deprivation can alter immune cell profiles to resemble those seen in obesity, a condition linked to chronic inflammation. Researchers found that sleep-deprived individuals had increased levels of non-classical monocytes, immune cells associated with inflammatory responses, similar to patterns observed in obese participants.

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Sleep

Sleep Strengthens Memory for Life Events Over a Year Later

Screen Time in Bed Linked to Less Sleep, Higher Insomnia Risk

How Sleep, Emotion, and Novelty Shape Memory

Less Deep Sleep Linked to Brain Shrinkage, Alzheimer’s Risk

How Sleep Rewrites the Brain to Strengthen and Optimize Memories

Sleep-Deprived Fruit Flies Show Sharper Memory via PKA Signaling

Changes in Sleep Patterns Could Predict Dementia Risk

Higher Depression Risks for Night Owls

Poor Sleep Linked to Brain’s Waste-Removal Breakdown

Sleeping With Eyes Open: How Pupil Size Reveals Brain Activity

Sleep Brain Waves Linked to Consciousness in Coma

Poor Sleep Alters Immune Cells, Increasing Risk for Inflammatory Diseases

Glioblastoma’s Chaos Follows Predictable Rules

One Autism Mutation Collapses the Whole Gene Network

Why Bitter Coffee Starts to Taste So Good to Your Brain

Omega-3 DHA Eases Autism Behaviors by Calming Inflammation

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