Twilight Pro Unlock

About Twilight Pro Unlock

Twilight Pro Unlock Update

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.
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.
PRO features
- more than 2 predefined profiles
- adjustable transition time
- option to turn off Twilight service altogether during inactive times
- new features will often first appear as PRO
Thank you very much for your intention to support our development. This is a pro application for the Twilight app. Please install on top, do not uninstall Twilight first. 
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 & Co 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..
                                

Install Twilight Pro Unlock APK on Android

1.Download Twilight Pro Unlock APK For ApkDowner.

2.Tap Twilight Pro Unlock.apk.

3.Tap Install.

4.Follow the steps on screen.