tldrdailynews.com logo
Tag

Rem Sleep

All articles tagged with #rem sleep

Soft skin patch speeds REM sleep onset by 43 minutes
technology16 days ago

Soft skin patch speeds REM sleep onset by 43 minutes

UT Austin researchers developed a soft wearable patch called NEUSLeeP that combines gentle ultrasound stimulation with real-time brain monitoring to noninvasively reach deep brain regions involved in REM sleep. In a 28-person study, users entered REM sleep 43 minutes earlier and remained in REM about 16 minutes longer. The patch also increased heart rate variability and showed brain circuit changes linked to emotion, suggesting potential for treating sleep disorders and reducing stress. The device could enable at-home sleep monitoring and research, with larger trials planned and a patent filed as UT’s commercialization office moves toward market.

via TechSpot|
#noninvasive-brain-stimulation#rem-sleep#sleep
Sleep aid or brain caution: melatonin’s murky impact on kids
health17 days ago

Sleep aid or brain caution: melatonin’s murky impact on kids

A study of 684 children suggests melatonin users have less REM sleep, a stage tied to memory, learning, and emotional development, raising questions about long-term effects since melatonin isn’t FDA-regulated and dosing varies; experts urge caution, prioritize sleep hygiene, and reserve melatonin for circadian-disorder cases with small, precisely timed doses while addressing underlying sleep problems.

via New York Post|
#development#health#kids
Ultrasound Wearable Accelerates REM Sleep Without Drugs
health-and-medicine18 days ago

Ultrasound Wearable Accelerates REM Sleep Without Drugs

UT Austin researchers developed a soft wearable patch (NEUSLeeP) that uses ultrasound and real-time brain monitoring to noninvasively target REM sleep, making users enter REM 43 minutes faster and stay about 16 minutes longer in a 28-person study, with evidence of improved heart-rate variability and changes in emotion-related brain circuits, hinting at benefits for stress and mood regulation and potential applications for PTSD, depression, and insomnia; larger trials and commercialization are planned.

via ScienceDaily|
#emotion-regulation#health-and-medicine#rem-sleep
science23 days ago

REM Dreams Hint at a Hidden Brain Energy Paradox

A mouse study from Tohoku University shows that during REM sleep, blood flow and astrocyte-derived fuel rise, but neuronal ATP declines, suggesting energy delivery and usage are temporarily out of sync as dreaming triggers intense brain activity. This energy mismatch means more blood flow doesn’t automatically boost usable energy, and the brain may reorganize energy flow to support internal processing and memory, helping explain why dreaming can feel tiring and how sleep maintains neural efficiency.

via SciTechDaily|
#astrocytes#atp#brain-metabolism
REM Sleep Reveals an Energy-Allocation Paradox in Brain Metabolism
neuroscience28 days ago

REM Sleep Reveals an Energy-Allocation Paradox in Brain Metabolism

Using wide-field imaging through the intact mouse skull, the study tracks brain blood volume, astrocytic pyruvate, and neuronal ATP across sleep states and finds that energy delivery and consumption are reorganized by brain state: during NREM, theta activity predicts subsequent BBV with anterior-to-posterior vascular waves, while REM sleep triggers a cortex-wide BBV surge and astrocytic pyruvate rise but a paradoxical drop in neuronal ATP. This dissociation suggests a state-dependent energy reallocation that prioritizes synaptic remodeling and memory-related processing over immediate ATP restoration, revealing a tripartite metabolic network (neurons, astrocytes, vasculature) that flexibly distributes substrates to meet distinct information-processing demands.

via Nature|
#astrocyte-neuron-interaction#brain-metabolism#energy-allocation
TV bedtime habit carries a hidden REM sleep cost rooted in childhood safety cues
health2 months ago

TV bedtime habit carries a hidden REM sleep cost rooted in childhood safety cues

Many people fall asleep with the TV on not out of laziness but because childhood associations of voices in another room signaled safety; new research shows that continuous background sound, especially pink noise at about 50 decibels, can reduce REM sleep by nearly 19 minutes per night, a cost that accumulates over time and may affect memory, emotion, and development. The habit serves three functions—sensory masking, cognitive distraction, and ongoing processing during sleep—but the final impact is a less restorative sleep architecture. Changing the pattern usually works best with gradual decoupling (e.g., using a timer or audio-only alternatives) and addressing underlying anxiety rather than simply turning off the TV.

via Silicon Canals|
#background-noise#health#neuroscience
Hidden thalamic rhythm may mark conscious brain states
health2 months ago

Hidden thalamic rhythm may mark conscious brain states

Researchers identified a new thalamic rhythm (19–45 Hz, peaking around 28 Hz) that only appears during wakefulness and REM sleep, vanishing in non-REM sleep. Detected via deep-brain recordings in epilepsy patients, this pattern is strongest near the central thalamus and closely links with rapid eye movements, suggesting it could serve as a measurable biomarker of conscious states and inform targeted brain therapies for disorders of consciousness and related conditions.

via The Brighter Side of News|
#brain#consciousness#health
THC-CBD sleep study shows altered brain rhythms and delayed dreaming phase
sleep2 months ago

THC-CBD sleep study shows altered brain rhythms and delayed dreaming phase

In a small, blinded crossover trial of twenty adults with insomnia, a single oral dose of 10 mg THC plus 200 mg CBD shortened total sleep by about 25 minutes and cut REM sleep by roughly 34 minutes, while delaying REM onset by more than an hour. High-density EEG revealed calmer activity in lighter sleep stages but reduced slow-wave activity in deep sleep and increased fast rhythms in posterior regions during REM, indicating more nocturnal arousal and shallower sleep. Next-day cognitive tests were largely unchanged, though participants reported mild sleepiness. The study’s limitations—small sample size and one-night exposure—call for longer-term research on safety and tolerability of medicinal cannabis for sleep.

via PsyPost|
#cannabis#eeg#insomnia
Midbrain–Thalamus Rhythm Identified as a Consciousness Signature
science2 months ago

Midbrain–Thalamus Rhythm Identified as a Consciousness Signature

Researchers found a 20–45 Hz thalamic oscillation, recorded via implanted electrodes in epilepsy patients, that occurs only during wakefulness and REM sleep and vanishes in non-REM sleep. This robust bio‑signature of consciousness could enable real‑time monitoring of brain states and guide adaptive deep‑brain stimulation therapies for neurological disorders, representing a potential clinical tool and a new window into how the brain sustains conscious states.

via Neuroscience News|
#consciousness#deep-brain-stimulation#neuroscience
Dream Warnings: Can Nightmares Signal Hidden Health Issues?
health5 months ago

Dream Warnings: Can Nightmares Signal Hidden Health Issues?

Experts say some dreams can function as prodromal signals of illness, but most nightmares are harmless. The piece discusses how vivid, recurring dreams may reflect stress or emerging disease, highlighting Isabella Cavallo’s case in which dreams preceded an early cervical cancer diagnosis. It also notes REM sleep disorders can precede Parkinson's disease. While not a reliable predictor for individuals, noticing meaningful dream changes and discussing them with a doctor can prompt earlier testing and healthier lifestyle adjustments.

via AOL.com|
#cervical-cancer#health#nightmares
Dreams as Health Signals: What Sleep Experts Say Your Night Visions Mean
health5 months ago

Dreams as Health Signals: What Sleep Experts Say Your Night Visions Mean

Sleep doctors say dreams are a normal part of REM sleep, likely tied to memory processing and emotional processing. While dream interpretation isn’t exact science, common themes (teeth falling out, being chased, falling, naked in public, failing a test, flying, infidelity, drowning, seeing deceased loved ones, and sex) often reflect daytime stress, fears, and personal concerns. REM sleep concentrates in the second half of the night and helps sort memories, so these nightly narratives can offer insight into your mental state, though they do not diagnose health issues by themselves.

via AOL.com|
#dreams#health#memory-processing
Snooze Dilemma: When Hitting Snooze Helps or Hurts Sleep
health7 months ago

Snooze Dilemma: When Hitting Snooze Helps or Hurts Sleep

A global six‑month study tracked more than 21,000 adults and found snoozing is common (about 2.4 extra alarms per morning); the health impact is mixed: some data suggest snoozing can reduce morning grogginess for well‑rested individuals, but it may disrupt sleep schedules and REM sleep, and evidence that a few extra minutes affect next‑day performance is limited. If snoozing masks underlying sleep problems, focus on sleep hygiene and maintaining a consistent wake time, and consult a clinician to address root causes if sleep issues persist.

via The New York Times|
#alarm#circadian-rhythm#health