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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.
People swear by the cozy "cocoon" sleep hack for a better night's sleep. An expert shares how it works and its benefits. Why People Swear by the 'Cocoon' Sleep Hack: 'Best Sleep You'll Ever Get'
Color blindness (color vision deficiency) is the decreased ability to see color or differences in color. It can impair daily color tasks such as selecting ripe fruit or choosing clothing, as well as safety-related tasks such as interpreting traffic lights. While the disability of color blindness is considered minor, the use of color in safety ...
A glass ionomer cement ( GIC) is a dental restorative material used in dentistry as a filling material and luting cement, [ 1] including for orthodontic bracket attachment. [ 2] Glass-ionomer cements are based on the reaction of silicate glass-powder (calciumaluminofluorosilicate glass [ 3]) and polyacrylic acid, an ionomer.
Here's how you can try the alpha bridge sleep hack to get a solid night's sleep. Get started by shutting your eyes and count to 30. Open your eyes just a bit and count to five. Repeat step #1 as ...
The gas cloud initially rose at nearly 100 kilometres per hour (62 mph; 28 m/s) and then, being heavier than air, descended onto nearby villages, suffocating people and livestock within 25 kilometres (16 mi) of the lake, resulting in the death of 1,746 people and 3,500 livestock.