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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.
In the season 10 premiere "Happy New Year", Larry inadvertently causes Alice to be uncomfortable when he questions a tattoo on her wrist and uses her shirt to wipe his glasses. She later walks into Larry wearing a Make America Great Again hat while mimicking the Donald Trump Access Hollywood tape incident (while mistaking Jeff for Harvey ...
Night vision is the ability to see in low-light conditions, either naturally with scotopic vision or through a night-vision device. Night vision requires both sufficient spectral range and sufficient intensity range. Humans have poor night vision compared to many animals such as cats, dogs, foxes and rabbits, in part because the human eye lacks ...
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Lethargy and tiredness can be symptoms of many different conditions, including: - urinary tract infections. - kidney disease. - diabetes. - malnutrition/lack of proper nutrients. - hypothyroidism ...
Senior dogs need more sleep as well since it helps "their bodies recover from daily activities." Other factors that can contribute to your dog's sleeping habits include environment, health issues ...
Rapid eye movement sleep (REM sleep or REMS) is a unique phase of sleep in mammals (including humans) and birds, characterized by random rapid movement of the eyes, accompanied by low muscle tone throughout the body, and the propensity of the sleeper to dream vividly. The REM phase is also known as paradoxical sleep (PS) and sometimes ...
Despite their popularity, blue light-blocking glasses probably don’t do much to reduce eyestrain, help keep people alert or improve sleep, according to a meta-analysis looking at 17 studies ...