tiredness noun – Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner’s Dictionary at OxfordLearnersDictionaries.com.

somnolent. adjective. literary feeling ready to sleep.

tired

• annoyed.
• bored.
• distressed.
• drained.
• fatigued.
• overworked.
• sleepy.
• stale.

What is another word for sleep?

ready to drop, dog-tired (informal), zonked (slang), dead beat (informal), asleep or dead on your feet (informal)

Synonyms & Antonyms of sleep

• bed,
• catnapping,
• dozing,
• napping,
• repose,
• rest,
• resting,
• shut-eye,

Opposite of in a state of inactivity or repose, either physical or mental. sleepless. wakeful. awake. unsleeping.

Antonyms: nod off, fall asleep, flake out, drowse off, drift off, doze off, drop off, dope off.

blackness

• dark.
• dimness.
• duskiness.
• gloom.
• murkiness.
• nightfall.
• total darkness.

As detailed above, ‘dark’ can be a noun or an adjective. Noun usage: Dark surrounds us completely. Noun usage: We kept him in the dark.

Nascent CRT technology wasn’t efficient enough to illuminate an entire surface without burning out, which is why computers in the ’70s and ’80s had those Matrix-style black backgrounds with green text (or white, or amber). For the very first computer screens, dark mode was default. Manchester Bay, 1945.

Dark mode may be a personal preference for some, but it isn’t necessarily better for your eyes. It also isn’t a substitute for better methods to reduce eye strain, DeBroff says. To prevent and treat eye strain, he recommends: Giving your eyes a rest from screens every 20 minutes.

Setting your device to dark mode means that it will display white text on a dark background. Dark mode is intended to reduce blue light exposure and help with eye strain that comes with prolonged screen time.

The vision experts at RxOptical.com have this to say on the topic: “Black text on a white background is best, since the color properties and light are best suited for the human eye … White text on a black background, or ‘dark mode,’ makes the eye work harder and open wider, since it needs to absorb more light.”

Summary: In people with normal vision (or corrected-to-normal vision), visual performance tends to be better with light mode, whereas some people with cataract and related disorders may perform better with dark mode. On the flip side, long-term reading in light mode may be associated with myopia.

Why you shouldn’t use dark mode While dark mode does reduce eye strain and battery consumption, there are some downsides to using it as well. The first reason has to do with the way the image is formed in our eyes. The clarity of our vision depends on how much light is entering in our eyes.

Dark mode can reduce eye strain in low-light conditions. 100% contrast (white on a black background) can be harder to read and cause more eye strain. It can be harder to read long chunks of text with a light-on-dark theme.

In other words, dark mode on your phone probably wouldn’t prevent you from becoming nearsighted, but will most likely slow down this undesirable effect to your eyes. Conversely, traditional instances where dark text is displayed onto a very bright background would do you more harm than good.

Your Android phone has a dark theme setting that will help you save battery life. Here’s how to use it. Fact: Dark mode will save battery life. Without a dark mode, all of that empty white space on your phone’s display requires more power, which in turn drains your battery.

And as it turns out, if you have the iPhone 12 in Dark Mode, it will save a lot more battery life as compared to when the same device is in Light Mode. In the video, we also see iPhone 11 with LCD screen losing while in Dark Mode, leaving iPhone 12 with almost 13% extra battery.

It Might Be Affecting Your Mood The deprivation of light can change how our brains work and can lead to greater levels of depression.

Seeing light text on a dark screen allows the iris in our eyes to be more burdened. It has to widen much more than it does in case of a white screen. However, at the same time, dark mode is preferable when the reader on any device has low-light conditions and doesn’t prefer to read long chunks of text.

You could have astigmatism Astigmatism causes blurred vision due to the irregular shape of one or both eyes. It can make it more difficult for people to read light text on dark backgrounds.

The idea behind dark mode is that it reduces the light emitted by device screens while maintaining the minimum colour contrast ratios required for readability. Both iPhones and Android handsets offer system-wide dark modes. However, you will still need to set up dark mode on some individual apps.

You can schedule night shift to turn on any time you’d like, but I recommend keeping it on all day. We get plenty of blue light and this way you never have to worry about looking at your phone.