by Wolters Kluwer Health Credit: Unsplash/CC0 Public DomainFor years, scientists have expressed concern about potential adverse health effects of excessive exposure to short wavelength light (SWL), which includes the “blue light” from smartphones, laptops, and tablets. However, the International Commission on Non-Ionizing Radiation Protection (ICNIRP) has identified a lack of consensus among public health officials about...
A new study shows that the brightness of light matters more than its color. Reviewed by Gary Drevitch KEY POINTSResearchers exposed healthy subjects to blue, yellow, and white light for an hour before bed.The color of light made no difference to participants’ level of drowsiness or sleep quality.Light-sensitive ganglion cells in the eye, not color-producing...
by American Chemical Society With the inherent sleep and wake cycle regulated by natural sunlight, the human body has evolved over millennia to be active during the day and to rest at night. However, maintaining an optimal 24-hour cycle has become increasingly problematic in modern society as more people spend the majority of the day indoors....
by Steve Lundeberg, Oregon State University Flies under blue light. Credit: Oregon State University College of Science The damaging effects of daily, lifelong exposure to the blue light emanating from phones, computers and household fixtures worsen as a person ages, new research by Oregon State University suggests. The study, published today in npj Aging, involved Drosophila melanogaster,...
UNIVERSITY OF TSUKUBA IMAGE: Researchers from the University of Tsukuba have found that exposure to specific types of light before sleep can have variable effects on energy metabolism during sleep. Specifically, participants who went to sleep after exposure to organic light-emitting diodes (OLEDs), which emit a polychromatic white light that contains less blue light than...
Birds start singing in the early morning directly with the first rays of the light from the Sun. It is caused by the light that regulates the biological activity of the living organisms. The light changes the biological clock by suppressing the production of the natural hormone – melatonin. It happens due to its high...
The Department of Defense has a vested interest in the new University of Arizona-led research, but the results have implications for civilians as well UNIVERSITY OF ARIZONA Early morning blue light exposure therapy can aid the healing process of people impact by mild traumatic brain injury, according to new research from the University of Arizona....
In today’s highly connected world we are increasingly having blue light beamed into our eyes at all times of day. While a convincing body of research is suggesting blue light from our TVs, computers, smart phones and tablets can significantly disrupt our circadian rhythms, it is less clear how much damage this particular spectrum of light...
