Tag

Blue Light

All articles tagged with #blue light

health17 days ago•4 min saved

Neuroscientist warns everyday LED lighting may trigger a public health crisis

A University College London neuroscientist likens energy-efficient LED lighting to asbestos in terms of potential health risk, arguing that blue-enriched light can damage mitochondria and disrupt metabolism, possibly raising diabetes risk. Supporting studies in mice show reduced mitochondrial activity and altered liver function, though EU regulators say there is no direct health effect in normal use; more research is urged, with practical mitigations like exposure to natural broad-spectrum light and balanced light spectra.

via New York Post|

#blue-light #circadian-rhythm #health

health5 months ago•4 min saved

Harvard-backed finding: charging a phone at night can throw off sleep and aging signals

A Harvard-linked view says even a dim phone light near the bed can suppress melatonin, shift circadian timing, and reduce REM and deep sleep, delaying the body’s nightly repair and nudging aging-related processes. Over time, this circadian misalignment is linked to metabolic strain and poorer cognitive recovery. Practical fixes include moving the charger out of the bedroom, enabling Do Not Disturb and minimizing notifications, using dim red-shifted or amber lighting, and maintaining a consistent day–night schedule with bright morning light and gradually dimmer evenings.

via Iowa Park Leader|

#aging #blue-light #circadian-rhythm

health-and-wellness9 months ago•8 min saved

Ultimate Guide to a Relaxing Bedtime Routine

Establishing a consistent evening routine that includes activities like winding down without screens, taking a bath, and timing exercise and meals appropriately can significantly improve sleep quality and overall well-being.

via The Guardian|

#baths #blue-light #evening-routine

health1 year ago•3 min saved

5 Sleep Tips That Could Be Worsening Your Insomnia

A sleep researcher suggests that common habits like going to bed earlier, using screens before bed, and obsessing over sleep quality can worsen insomnia. Instead, maintaining a consistent wake time, using screens strategically, and reducing caffeine intake based on individual response are recommended to improve sleep. The article emphasizes that healthy sleep is flexible and that worrying less about sleep can help, as insomnia is common but treatable.

via Gazeta Express|

#blue-light #health #insomnia

health1 year ago•1 min saved

Blue Light and Sleep: How Harmful Is It?

Recent research suggests that blue light from screens may not be as harmful to sleep as previously thought, and in some cases, screen use could even aid in falling asleep, challenging the traditional view that blue light significantly disrupts sleep by suppressing melatonin.

via The New York Times|

#blue-light #health #melatonin

health-and-wellness1 year ago•6 min saved

Rethinking the 'No Screens Before Bed' Rule: When It Might Not Apply

A recent study challenges the common belief that screens before bed significantly disrupt sleep, suggesting that blue light from screens has minimal impact on sleep quality. Instead, factors like stress, racing thoughts, and irregular sleep schedules are more influential. While screens can sometimes help with relaxation if used appropriately, it's best to avoid highly stimulating content and to establish a consistent bedtime routine for better sleep.

via The Everygirl|

#blue-light #health-and-wellness #screens

health1 year ago•3 min saved

Sleep Expert Reveals Surprising Reason to Use Your Phone in Bed

Recent research suggests that blue light from screens does not significantly disrupt sleep, and the real issue is staying up too late or stress. Using devices before bed can be helpful for some, as it reduces racing thoughts, but moderation and intentional use are key. The common advice to avoid screens before sleep may be based on myths, and understanding individual sleep patterns is more important.

via Bustle|

#bedtime-routine #blue-light #health

science1 year ago•4 min saved

Mysterious Blue Light Emerges from Chinese Avalanche

A rare natural phenomenon was captured on Mount Xiannairi in Sichuan, China, where an avalanche emitted a mysterious blue light. Astrophotographer Shengyu Li recorded the event, sparking scientific interest and theories about its cause. Possible explanations include triboluminescence, where ice friction emits light, or electric field effects causing charge separation and discharge in the ice. This unprecedented observation offers new insights into the physical properties of ice and avalanche dynamics.

via The Daily Galaxy --Great Discoveries Channel|

#avalanche #blue-light #china

health2 years ago•4 min saved

"Eye Exercises: Ophthalmologist Debunks the Hype"

An ophthalmologist explains that there is no strong scientific evidence supporting the effectiveness of eye exercises in eliminating the need for glasses or providing long-term benefits for conditions like myopia, hyperopia, or presbyopia. While some vision therapy may help with specific ocular issues like eye misalignment, general eye health is best maintained through regular eye exams, limiting screen time, following the 20-20-20 rule, spending time outdoors, and avoiding smoking. Blue light blockers and supplements lack substantial evidence for improving vision or reducing eye strain.

via The Conversation|

#blue-light #eye-health #health

technology2 years ago•3 min saved

Daylight DC1: The Blue-Light-Free Tablet with 120Hz E-Ink Display

Daylight Computer has launched the DC1, a 10.5-inch tablet featuring a unique "LivePaper" screen that combines the look of E Ink with the responsiveness of an LCD. The device aims to reduce distractions and eyestrain with an amber backlight and runs on a custom Android-based OS called SolOS. Priced at $729, the DC1 is currently in the preorder phase and aims to redefine our relationship with technology by promoting a calmer, more focused user experience.

via The Verge|

#blue-light #daylight-dc1 #livepaper-screen

health2 years ago•5 min saved

The Impact of E-Readers on Sleep Patterns

E-readers, such as Kindles and iPads, emit blue light that can disrupt sleep by delaying the circadian rhythm, interfering with melatonin production, impacting morning alertness, making it harder to fall asleep at night, and reducing time spent in deep stages of sleep. However, electronic ink readers like Kindles emit less blue light compared to LED or LCD e-readers like iPads. If using an e-reader before bed, it is recommended to follow good sleep habits such as avoiding screens within an hour before bed, using dark or night mode, and considering blue-light-blocking glasses. Ultimately, the impact on sleep varies for individuals, and if e-readers do not affect sleep, there is no need to change bedtime routines.

via HuffPost|

#blue-light #circadian-rhythm #e-readers

neuroscience3 years ago•2 min saved

"Unveiling the Brain's Response to Blue Light: Insights from Ultrahigh-field MRI"

Researchers at the University of Liège have used ultrahigh-field MRI to investigate how blue light stimulates the brain. They found that exposure to blue-enriched light strengthened the connectivity between the posterior thalamus and the intraparietal sulcus, an attentional-related area of the cortex. This modulation of information flow from subcortical to cortical areas suggests that blue light affects non-visual cognitive activity. The study provides empirical data supporting the impact of blue light on brain function and highlights the role of the thalamus in relaying non-visual light information.

via physicsworld.com|

#blue-light #brain-stimulation #neuroscience

health3 years ago•2 min saved

"Link Found Between Blue Light from Devices and Early Puberty in Males"

A study conducted in Turkey has found that exposure to blue light from smart device screens may accelerate the onset of puberty in male rats, suggesting a potential link between excessive screen time and early childhood development. The research team observed the first signs of puberty occurring earlier in male rats exposed to blue light compared to a control group. While the study's findings cannot be directly applied to humans, the researchers hope to further investigate the long-term effects of blue light exposure on reproductive organ damage and fertility. Experts are increasingly concerned about the impact of screen time on youth, and the results highlight the need for routine and intervention strategies surrounding the use of smart devices.

via New York Post |

#blue-light #health #puberty

science-and-technology3 years ago•2 min saved

"Molecular Additive Boosts Efficiency of Next-Gen LEDs, but Reduces Lifespan"

Researchers at the Max Planck Institute have developed a new molecule structure that enhances the efficiency of blue OLEDs by eliminating the negative effects of impurities. By arranging the molecules in a spiral formation, the electron-conducting core is shielded from impurities, allowing for faster and obstacle-free electron transport. This breakthrough could simplify the design and production process of blue OLEDs, leading to advancements in OLED technology.

via SciTechDaily|

#blue-light #charge-trapping #molecule-structure

health-and-wellness3 years ago•4 min saved

"Harnessing Natural Light and Other Strategies for Optimal Sleep"

Spending time outdoors and getting sunlight can help improve sleep quality. Light, especially blue light, affects the production of melatonin, a hormone that regulates sleep. Exposure to natural light in the morning and early afternoon can help regulate circadian rhythms and reduce sleepiness. Dimming lights and avoiding blue light from screens before bedtime can also improve sleep. It is recommended to sleep in darkness, with minimal light pollution. Cognitive behavioral therapy is a recommended treatment for insomnia, addressing the underlying cause of sleep issues rather than targeting symptoms with medication.

via The Washington Post|

#blue-light #circadian-rhythms #health-and-wellness