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Twilight Donation

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Thank you very much for your intention to support our development. This is a donation application for the Twilight app. Please install on top, do not uninstall Twilight first.

Twilight

Are you having troubles to fall 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.

The Twilight app makes your device screen adapt to the time of the day. It filters the blue spectrum on 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.

Please read the basics on circadian rhythm and the role of melatonin:

http://en.wikipedia.org/wiki/Melatonin
http://en.wikipedia.org/wiki/Melanopsin
http://en.wikipedia.org/wiki/Circadian_rhythms
http://en.wikipedia.org/wiki/Circadian_rhythm_disorder

Examples of 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, Jeanne F. Duffy, Edward J. Silva, Theresa L. Shanahan, Diane B. Boivin, Charles A. Czeisler 2012

Exposure to Room Light before Bedtime Suppresses Melatonin Onset and Shortens Melatonin Duration in Humans
Joshua J. Gooley, Kyle Chamberlain, Kurt A. Smith, Sat Bir S. Khalsa, Shantha M. W. Rajaratnam, Eliza Van Reen, Jamie M. Zeitzer, Charles A. Czeisler, Steven W. 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, Richard E. Kronauer, Megan E. Jewett, Charles A. Czeisler 2009

Intrinsic period and light intensity determine the phase relationship between melatonin and sleep in humans
Kenneth P. Wright, Claude Gronfier, Jeanne F. Duffy, Charles A. Czeisler 2009

The Impact of Sleep Timing and Bright Light Exposure on Attentional Impairment during Night Work
Nayantara Santhi, Daniel Aeschbach, Todd S. Horowitz, Charles A. Czeisler 2008

Short-Wavelength Light Sensitivity of Circadian, Pupillary, and Visual Awareness in Humans Lacking an Outer Retina
Farhan H. Zaidi, Joseph T. Hull, Stuart N. Peirson, Katharina Wulff, Daniel Aeschbach, Joshua J. Gooley, George C. Brainard, Kevin Gregory-Evans, Joseph F. Rizzo, III, Charles A. Czeisler, Russell G. Foster, Merrick J. Moseley, Steven W. Lockley. 2007

High sensitivity of the human circadian melatonin rhythm to resetting by short wavelength light.
Lockley SW, Brainard GC, Czeisler CA. 2003

Sensitivity of the human circadian pacemaker to nocturnal light: melatonin phase resetting and suppression
Jamie M Zeitzer, Derk-Jan Dijk, Richard E Kronauer, Emery N Brown, Charles A Czeisler 2000

Phase-shifting human circadian rhythms: influence of sleep timing, social contact and light exposure
J F Duffy, R E Kronauer, C A Czeisler 1996

Exposure to bright light and darkness to treat physiologic maladaptation to night work.
Czeisler CA, Johnson MP, Duffy JF, Brown EN, Ronda JM, Kronauer RE. 1990

Free download from Shareware Connection - Thank you very much for your intention to support our development. This is a donation application for the Twilight app. Please install on top, do not uninstall Twilight first. TwilightAre you having troubles to fall asleep? Are your kids...

Publisher: Urbandroid Team | License: Shareware | Price: 2.49
Version: 1.2 | Size: 27 KB | Platform: Android, WinMobile
Released Date: | Rating: 0 | Title: Twilight Donation

Author Url: https://play.google.com/store/apps/developer?id=Urbandroid+Team
Program Info Url: https://play.google.com/store/apps/developer?id=Urbandroid+Team
Download Url: https://play.google.com/store/apps/details?id=com.urbandroid.lux.donate

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Sleep Cloud Backup - This is an add-on for Sleep as Android to allow backup of sleep graphs to cloud services: Dropbox and Google Drive. This add-on does not work without Sleep as Android being installed.-Automatic upload of new sleep graphs after tracking-Graphs...

Twilight Donation related downloads:

Free Twilight Breaking Dawn Screensaver - Free Twilight Breaking Dawn Screensaver. This amazing screensaver contains images from the latest Twilight Saga movie, Breaking Dawn. The Twilight Saga: Breaking Dawn will be released in November 2011

Free Twilight Eclipse Screensaver - Free Twilight Eclipse Screensaver

A collection of official wallpapers from Manchester United Football Club.

DonateOMeter - Free Hosted PayPal Donation Widget - DonateOMeter is a new flash/php based donations widget that allows you to raise funds for your various causes, show donation totals which are updated in realtime, uses PayPal and also has manual donation methods for you to update donations received t

DonateOMeter - PayPal Donation Widget - Us this flash/php based donation widget to help raise money for your cause, donations are tracked in real time using paypal and the widget is autimatically updated with the latest donation totals, donors and other info, fully customizable style packs

Free Twilight Desktop Icons - Free Twilight Desktop Icons is a collection of 12 free icons for personal and commercial use (software applications, websites, blogs etc.) based on the Twilight Saga. Distributed under a Creative Commons Attribution-Share Alike license 3.0.

Shareware Connection periodically updates pricing and software information of 'Twilight Donation' from company source 'Urbandroid Team' , so some information may be slightly out-of-date. You should confirm all information before relying on it. Software piracy is theft,  Using 'Twilight Donation' crack, password, serial numbers, registration codes, key generators is illegal and prevent future development of Twilight Donation.

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