Twilight Blue light filter for better sleep Pro V 12.0 APK
Urbandroid (Petr Nálevka)
Recent research suggests that exposure to blue light before sleeping can distort your natural (circadian) rhythm and cause an inability to fall asleep. The cause is the photoreceptor in the eyes, called melanopsin. This receptor is sensitive to a narrow band of blue light in the 460-480 nm range that can suppress the production of melatonin, a hormone responsible for your healthy sleep-wake cycles. Experimental scientific studies have shown that the average person Reading on a tablet or smart phone for a couple of hours before bedtime you may find that your sleep is delayed by about an hour. See the references below. The Twilight app makes your device's screen adapt to the time of day. Filter the stream of blue light emitted by your phone or tablet after sunset and protect your eyes with a nice soft red filter. Filter intensity smoothly adjusts to solar cycle based on local sunrise and sunset times.
Required Android Versions : Ice Cream Sandwich [4.0.3–4.0.4] - Jelly Bean [4.1–4.3.1] - KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]