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Twilight Blue light filter for better sleep
v12.1 build 405MOD Features How to install
Download Link(s):Download Link (how to download?)
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Are you having trouble falling asleep? Are your kids hyperactive when playing with the tablet before bed time?
Are you using your smart phone or tablet in the late evening? Twilight may be a solution for you!
Recent research suggests that exposure to blue light before sleep may distort your natural (circadian) rhythm and cause inability to fall asleep.
The cause is the photoreceptor in your eyes, called Melanopsin. This receptor is sensitive to a narrow band of blue light in the 460-480nm range which may suppress Melatonin production - a hormone responsible for your healthy sleep-wake cycles.
In experimental scientific studies it has been shown an average person reading on a tablet or smart phone for a couple of hours before bed time may find their sleep delayed by about an hour. See references below..
The Twilight app makes your device screen adapt to the time of the day. It filters the flux of blue light emitted by your phone or tablet after sunset and protects your eyes with a soft and pleasant red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.
Documentation
Doc – Twilight
twilight.urbandroid.org
Get more from Twilight
1) Bed reading: Twilight is more pleasant on the eyes for night reading. Especially as it is able to lower the screen backlight far below the ability of the backligt controls on your screen
2) AMOLED screens: We have tested Twilight on an AMOLED screen for 5 years without any sign of depletion or over-burning. If properly configured Twilight causes less light emission (by enabling dimming) with more equal light distribution (dark areas of the screen such as the status bar get tinted). This may in fact increase your AMOLED screen life time.
Permissions
- location - to find out your current sunset/surise times
- running apps - to stop Twilight in selected apps
- write settings - to set back-light
- network - access smartlight (Philips HUE) to shield you household light from blue
Related scientific research
Amplitude Reduction and Phase Shifts of Melatonin, Cortisol and Other Circadian Rhythms after a Gradual Advance of Sleep and Light Exposure in Humans Derk-Jan Dijk, & Co 2012
Exposure to Room Light before Bedtime Suppresses Melatonin Onset and Shortens Melatonin Duration in Humans Joshua J. Gooley, Kyle Chamberlain, Kurt A. Smith & Co, 2011
Effect of Light on Human Circadian Physiology Jeanne F. Duffy, Charles A. Czeisler 2009
Efficacy of a single sequence of intermittent bright light pulses for delaying circadian phase in humans Claude Gronfier, Kenneth P. Wright, & Co 2009
Intrinsic period and light intensity determine the phase relationship between melatonin and sleep in humans Kenneth P. Wright, Claude Gronfier & Co 2009
The Impact of Sleep Timing and Bright Light Exposure on Attentional Impairment during Night Work Nayantara Santhi & Co 2008
Short-Wavelength Light Sensitivity of Circadian, Pupillary, and Visual Awareness in Humans Lacking an Outer Retina Farhan H. Zaidi & Co, 2007
High sensitivity of the human circadian melatonin rhythm to resetting by short wavelength light. Lockley SW & Co. 2003
Sensitivity of the human circadian pacemaker to nocturnal light: Jamie M Zeitzer, Derk-Jan Dijk & Co 2000
You can play and install this app without root permissions.
You can play this game even without any Internet Connection.
Premium Unlocked!
• App not installing/saying not compatible and you're running Android 14? Then you may need to install and use VPhoneOS on your phone by clicking here or, if have a computer, visit this page from PC and click here. This should help you. If not, read this: how to install mod apk files on Android 14 or newer.
Before reading the installation instructions below, if you need help about how to use our website, please watch a simple video tutorial we created, about How to Download & Install apk files from sbenny.com by clicking here.
Download the desired APK file and tap on it to install it on your device. Make also sure to uninstall your game first if you have it installed!
• App not installing/saying not compatible and you're running Android 14? Then you need to install VPhoneOS on your phone by clicking here or, if have a computer, visit this page from PC and click here. Also, make sure you turned off "Play Protect" from the Google Play Store app, as it prevents installing mods. This should help you. If not, read this: how to install mod apk files on Android 14 or newer.
If you need help about how to use our website, please watch this simple video tutorial below about How to Download & Install apk files from sbenny.com.
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Code:https://play.google.com/store/apps/details?id=com.urbandroid.lux
