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Blue light has a significant impact on numerous physiological processes in human health. [3] The widespread use of blue light in modern technology brings up a concern about the potential consequences of excessive blue light exposure. [4] Such exposure has been associated with disruptions in ocular health, sleep patterns, and well-being. [4] [5]
Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.
[6] [4] Light seems to have therapeutic antidepressant effects when an organism is exposed to it at appropriate times during the circadian rhythm, regulating the sleep-wake cycle. [ 6 ] [ 4 ] In addition to mood, learning and memory become impaired when the circadian system shifts due to light stimuli, [ 6 ] [ 20 ] which can be seen in studies ...
Emitted by a myriad of devices from televisions to phones and almost any display, blue light — a certain grade of high-energy light on the color spectrum — is certainly known to disrupt ...
The researchers hope to conduct further research on the effects of blue light glasses on sleep, eye health, and more, Dr. Sumeer Singh, an author on the study from the Downie Laboratory, said in ...
Melatonin, an indoleamine, is a natural compound produced by various organisms, including bacteria and eukaryotes. [1] Its discovery in 1958 by Aaron B. Lerner and colleagues stemmed from the isolation of a substance from the pineal gland of cows that could induce skin lightening in common frogs.
Studies have looked into light therapy as a treatment for dementia, however, the results have been conflicting. One study found that morning light therapy helped dementia patients with their sleep, yet functioning did not improve. In other trials, neither sleep nor behavior seemed to improve.
A study with ninety-six subjects, ages ranging from 18 to 55, were examined on how a variety of lighting could impact their mood and cognition. Subjects showed higher problem-solving abilities for females in a warm vs. cool white light source. The opposite result was shown for the male subjects. [2]