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Sleep

This shows two hearts and melatonin pills.

·November 3, 2025·9 min read

Long-Term Melatonin Use Linked to Higher Heart Failure Risk

A large-scale analysis of more than 130,000 adults with chronic insomnia found that long-term melatonin use—defined as one year or more—was associated with a striking increase in heart failure, hospitalization, and mortality risk. Using global health records, researchers found that melatonin users had about 90% higher odds of developing heart failure and were nearly twice as likely to die from any cause within five years.

This shows a brain on a pillow and food.

Featured Neuroscience

·November 3, 2025·4 min read

Losing Sleep Might Make You Hungrier and Sleepier Later

New research using fruit flies reveals that sleep loss can trigger both increased eating and sleeping—if the deprivation leads to energy depletion. Flies that lost energy while sleep-deprived compensated with extra rest and food intake, while those deprived without losing energy showed no such rebound.

Featured Neuroscience

·October 29, 2025·8 min read

Your Brain “Zones Out” After Poor Sleep To Clean Itself

New research shows that during moments of lost focus after poor sleep, the brain releases a wave of cerebrospinal fluid (CSF)—the same cleansing process that normally occurs during deep sleep. Using simultaneous EEG and fMRI scans, scientists found that these fluid pulses occur precisely when attention lapses, suggesting the brain is attempting to catch up on missed “housekeeping.”

Featured Neuroscience

·October 24, 2025·6 min read

Brain’s Energy Flow Reveals Hidden Coordination During Deep Sleep

New brain imaging research has uncovered how the brain’s energy and activity reorganize as it transitions from wakefulness to deep NREM sleep. Using an advanced tri-modal EEG-PET-MRI approach, scientists found that while cognitive regions quiet down, sensory and motor areas stay active, keeping the brain responsive to the environment.

This shows a teen in bed, awake and looking at a computer late at night.

Featured Neuroscience Psychology

·October 23, 2025·7 min read

Lack of Sleep in Teens Linked to Higher Suicide Risk

Teenagers who sleep less or experience frequent night awakenings are significantly more likely to attempt suicide later in adolescence, according to a major longitudinal study. Researchers analyzed data from more than 8,500 teens and found that poor sleep at age 14 predicted suicide attempts by age 17, even after accounting for other mental health risk factors.

Featured Neurology Neuroscience

·October 17, 2025·6 min read

Can a Disconnected Brain Be Conscious?

A new study reveals that sleep-like slow-wave brain activity can persist for years in surgically disconnected brain hemispheres of awake epilepsy patients. Using EEG recordings, researchers found that the isolated cortex exhibits patterns similar to deep sleep, anesthesia, or vegetative states—suggesting absent or reduced awareness.

Featured Neuroscience Psychology

·October 7, 2025·6 min read

Five Sleep Types Revealed: How Your Brain Wiring Reflects Rest

A new study has identified five distinct “sleep-biopsychosocial” profiles that connect how we sleep with our brain networks, mental health, cognition, and lifestyle. Using data from over 700 participants, researchers found that different sleep patterns—ranging from poor quality to resilience and short duration—each showed unique neural connectivity patterns.

Featured Neuroscience Psychology

·October 7, 2025·7 min read

What You Choose to Remember Shapes Memory More Than Emotion

A new study reveals that intentional memory control—deciding what to remember or forget—is more powerful than emotional influence when forming long-term memories. Participants were more likely to recall words they were told to remember than those carrying emotional weight, even though emotion sometimes strengthened recall or caused false memories.

This shows a mom holding a baby at night.

Featured Neuroscience Psychology

·October 3, 2025·6 min read

When Mom Struggles to Bond, Babies Sleep Worse

A large Finnish study has found that mothers who struggle to bond with their infants are more likely to have children with sleep problems that persist into toddlerhood. Difficulties in bonding at eight months were linked to sleep disruptions, including frequent awakenings and trouble falling asleep, even at age two.

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.

This shows a person sleeping and a brain.

Featured Neuroscience

·September 24, 2025·6 min read

Gut Microbes May Hold the Hidden Key to Why We Sleep

A new study shows that bacterial cell wall molecules, specifically peptidoglycan, are present in the brain and fluctuate with sleep cycles. This finding supports a hypothesis that sleep is not solely brain-regulated but arises from the interplay between the body and its microbiome.

Featured Neuroscience

·September 23, 2025·5 min read

Brain Waves During Sleep Are Driven by Neural Excitability

New research shows that slow oscillations in the brain, which occur during deep sleep and anesthesia, are guided by neuronal excitability rather than structural anatomy. Using computational models and experiments in mice, scientists demonstrated that the most excitable brain region directs the flow of these waves, like a leader setting a trend.