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=== Red interior lighting ===
=== Red interior lighting ===
If you live in your own room, it is possible to use either RGB or pure red LED lights during dark period to avoid the inconvenience and/or discomfort from wearing goggles.
=== Computer screen colour filters ===
=== Computer screen colour filters ===
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'''Note''' that, even with all the red colour filtered away, all screens, with the exception of OLED screens on some phones, '''will bleed backlight''', which is white and can compromise your dark period. Depending on the quality and brightness setting of your screen, this may or may not be an issue.
== Living with dark period ==
== Living with dark period ==
On Android, open up Settings, then tap Digital Wellbeing & parental control, then choose Wind Down, you can set up a schedule for the evening, which will turn your screen greyscale for the scheduled time. Alternatively, go to Settings > Developer Options > Simulate colour space and choose Monochromacy. (For this, you need to have Developer Options enabled. [https://developer.android.com/studio/debug/dev-options link])
On Android, open up Settings, then tap Digital Wellbeing & parental control, then choose Wind Down, you can set up a schedule for the evening, which will turn your screen greyscale for the scheduled time. Alternatively, go to Settings > Developer Options > Simulate colour space and choose Monochromacy. (For this, you need to have Developer Options enabled. [https://developer.android.com/studio/debug/dev-options link])
On GNOME, you can use the extension [https://github.com/YurchenkoSt/desaturate_all Desaturate All] to turn your display monochrome with the click of a button.
On GNOME, you can use the extension [https://github.com/YurchenkoSt/desaturate_all Desaturate All] (remember to checkout to the feature branch) to turn your display monochrome with the click of a button. It is possible to use switch back and force between red-only and red-greyscale mode to make a rough estimate of the underlying colour (this also applies to other methods).
On Windows 10, you can use the key combination Ctrl + Windows + C to toggle a grayscale filter. This can be configured by finding Turn color filters on or off from the start menu.
On Windows 10, you can use the key combination Ctrl + Windows + C to toggle a grayscale filter. This can be configured by finding Turn color filters on or off from the start menu.
=== Colour pickers ===
=== Colour pickers ===
When there is a need to determine some colours with precision, it is best to use a colour picker program. These programs grabs a pixel from your screen and records the brightness value in each of the subpixels.
== Related advice ==
== Related advice ==
=== Exercise ===
=== Exercise ===
Intense exercise such as lifting and long-distance running should be avoided during dark period, as they might disrupt the circadian rhythm.<ref>Christopher A Wolff, Karyn A Esser, Exercise timing and circadian rhythms, Current Opinion in Physiology, Volume 10, 2019, Pages 64-69, ISSN 2468-8673, <nowiki>https://doi.org/10.1016/j.cophys.2019.04.020</nowiki>.</ref> In addition, exercise may also disrupt sleep, which is usually in close proximity during dark period. However, during adaptation, it might be desirable to use exercise as a means to stay awake. Choose mild exercise routines and do not exercise for an extended period for this purpose.
Intense exercise such as lifting and long-distance running should be avoided during dark period, as they might disrupt the circadian rhythm.<ref>Christopher A Wolff, Karyn A Esser, Exercise timing and circadian rhythms, Current Opinion in Physiology, Volume 10, 2019, Pages 64-69, ISSN 2468-8673, <nowiki>https://doi.org/10.1016/j.cophys.2019.04.020</nowiki>.</ref> In addition, exercise may also disrupt sleep, which is usually in close proximity during dark period. However, during adaptation, it might be desirable to use exercise as a means to stay awake. Choose mild exercise routines and do not exercise for an extended period for this purpose.
== References ==
<references />
