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Looking at a computer all day only engages a specific part of your vision. It’s also important to blink and try the “ 20-20-20 ” rule: every 20 minutes, look at an object 20 feet away for 20 ...
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 ...
Computer vision syndrome. Computer vision syndrome ( CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time and the eye's muscles being unable to recover from the constant tension required to maintain focus on a close object.
Glasses with a notch filter (e.g. EnChroma glasses) filter a narrow band of light around 590 nm that excites both the L- and M-cones (yellow-green wavelengths). [12] They are often combined with an additional stopband in the short wavelength (blue) region to minimize the tint on the lenses and approximate a neutral-density filter .
Specialty. Psychiatry, neurology. Excessive daytime sleepiness ( EDS) is characterized by persistent sleepiness and often a general lack of energy, even during the day after apparently adequate or even prolonged nighttime sleep. EDS can be considered as a broad condition encompassing several sleep disorders where increased sleep is a symptom ...
Essentially, if your friends have risky behaviors around drugs and alcohol as a teen, you’re more likely to do the same—and that can set you down a path for health issues that linger well into ...
Restful sleep isn’t a myth, even though it might seem all but elusive for many people. Turns out when you talk about sleep, there are several phases and stages involved. One that has become ...
Shift work sleep disorder ( SWSD) is a circadian rhythm sleep disorder characterized by insomnia, excessive sleepiness, or both affecting people whose work hours overlap with the typical sleep period. Insomnia can be the difficulty to fall asleep or to wake up before the individual has slept enough. [ 1] About 20% of the working population ...