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To reduce the hazards of blue light exposure, effective management strategies can be implemented, including limiting screen time before bed and using blue light filter. The blue light spectrum is an essential part of the visible spectrum with wavelengths of about 400-480 nm. [1]
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.
Melatonin has been shown to mitigate the growth of tumors in rats. By suppressing the production of melatonin over the course of the night rats showed increased rates of tumors over the course of a four-week period. [22] Artificial light at night causing circadian disruption additionally impacts sex steroid production.
Despite our best efforts to avoid electronic screens before bed (research shows that the blue light these screens emit can disrupt the brain’s natural release of sleep-inducing melatonin ...
Avoid blue light, too. ... Bruen recommends getting 15 minutes of sunshine as soon as you wake up so that the melatonin release will shut off — plus, you’ll get some much-needed vitamin D.
The incandescent light bulbs used extensively throughout the 20th century emitted relatively low levels of blue light. [47] It has been found that light containing only wavelengths greater than 530 nm does not suppress melatonin under bright-light conditions. [48]
Avoiding technology close to bedtime, as the blue light emitted from screens disrupts melatonin production and can make it harder to doze off. Going to bed and waking up around the same time every day
When using any screen before bedtime, the blue light emitted disrupts the body's natural melatonin hormone production. [16] Melatonin is produced by the brain's pineal gland and controls the body's internal clock. [17] This clock is what is referred to as the body's circadian rhythm and it naturally is responsive to light. [18] Melatonin levels ...
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