Here is a good news for those of who have difficulty with morning alertness. A KAIST research team proposed that a blue-enriched LED light can effectively help people overcome morning drowsiness. This study will provide the basis for major changes in future lighting strategies and thereby help create better indoor environments.
Considerable research has been devoted to unmasking circadian rhythms. The 2017 Nobel Prize in Physiology or Medicine went to Jeffrey C. Hall, Michael Rosbash, and Michael W. Young for unveiling the molecular mechanisms that control circadian rhythms. In particular, the relationship between light and its physiological effects has been investigated since the discovery of a novel, third type of photoreceptor in the human retina in the early 2000s. Rods and cones regulate visual effects, while the third type, photosensitive retinal ganglion cells, regulate a large variety of biological and behavioral processes including melatonin and cortisol secretion, alertness, and functional magnetic resonance imaging (fMRI).
Initial studies on light sources have shown that blue monochromatic, fully saturated lights are effective for stimulating physiological responses, but the relative effectiveness of commercially available white light sources is less well understood. Moreover, the research was more focused on the negative effects of blue light; for instance, when people are exposed to blue light at night, they have trouble achieving deep sleep because the light restrains melatonin secretion.
However, Professor Hyeon-Jeong Suk and Professor Kyungah Choi from the Department of Industrial Design and their team argue that the effects of blue-enriched morning light on physiological responses are time dependent, and that it has positive effects on melatonin levels and the subjective perception of alertness, mood, and visual comfort compared with warm white light.
The team conducted an experiment with 15 university students. They investigated whether an hour of morning light exposure with different chromaticity would affect their physiological and subjective responses differently. The decline of melatonin levels was significantly greater after the exposure to blue-enriched white light in comparison with warm white light.
Professor Suk said, “Light takes a huge part of our lives since we spend most of our time indoors. Light is one of the most powerful tools to affect changes in how we perceive and experience the environment around us.”
Professor Choi added, “When we investigate all of the psychological and physiological effects of light, we see there is much more to light than just efficient quantities. I believe that human-centric lighting strategies could be applied to a variety of environments, including residential areas, learning environments, and working spaces to improve our everyday lives.”
The Latest on: Blue-enriched LED light
via Google News
The Latest on: Blue-enriched LED light
- Say No To The Morning Drowsiness With The New Blue-Enriched White Light: Study on March 7, 2019 at 11:32 am
Morning drowsiness can now be fixed with the help of blue-enriched LED light. blue-enriched LED light can effectively help people overcome drowsiness in the early morning. The results of this study ar... […]
- Blue-Enriched White Light to Wake You Up in the Morning on March 7, 2019 at 6:10 am
Here is good news for those who have difficulty with morning alertness. A KAIST research team has proposed that a blue-enriched LED light can effectively help people overcome morning drowsiness. This ... […]
- Blue-enriched LED Lighting to Boost Energy in the Morning on March 6, 2019 at 11:59 pm
Researchers from Korea Advanced Institute of Science and Technology (KAIST) suggested that a blue-enriched LED light can effectively boost morning alertness. This study further supports the concept of ... […]
- Blue-enriched white light to wake you up in the morning on March 6, 2019 at 6:18 am
A KAIST research team has proposed that a blue-enriched LED light can effectively help people overcome morning drowsiness. This study will provide the basis for major changes in future lighting ... […]
- Awakening effects of blue-enriched morning light exposure on university students’ physiological and subjective responses on January 23, 2019 at 2:35 am
These findings, extending the already known effects of short-wavelength light on human physiology, reveal interesting practical implications. Blue-enriched LED light seems to be a simple yet effective ... […]
- Melatonin suppression and sleepiness in children exposed to blue-enriched white LED lighting at night on December 16, 2018 at 4:00 pm
... ness in children exposed to 6200 K light was significantly lower than that in children exposed to 3000 K light. In children, blue-enriched LED lighting has a greater impact on melatonin suppressio... […]
- Can new LED light therapy improve mental health and well-being? on September 19, 2018 at 9:02 am
In the study, the LED lighting is automatically programmed to change in colour and intensity as the day progresses, beginning with with a sunrise, then a more intense, blue-enriched light during the d... […]
- Health round-up: Sleep Awareness Week, asthma and cancers affect on getting pregnant on July 5, 2017 at 7:13 pm
Switching from dull fluorescent lighting to the blue‐enriched white LED light bulbs improves an employees alertness and performance. Poor alertness results in roughly 10,000 work injuries and 25,000 r... […]
- Valkee HumanCharger light therapy LED headset review on April 7, 2017 at 5:00 pm
It’s a small iPod Nano shaped light therapy device with earbuds that pump UV free blue-enriched white light instead of music ... It has a micro USB connection on the end and a power button with a LED ... […]
- Bright light alters metabolism on May 20, 2016 at 6:25 am
evening blue-enriched light led to higher peak glucose. This suggests a greater inability of insulin to adequately compensate for the increase in glucose in the evening. […]
via Bing News