Why Apple iOS 'Night Mode' Improves Your Health

In the next version of Apple's mobile operating system, a feature you sleep better by helping to improve the health.

Electronic display of filtered light from the night shift for iOS 9.3, it would not interfere with your body clock. When it's dark outside, based on time and location, a phone or a member of the blue color on the screen will move.

This can improve public health specialists are happy with Apple's new feature. "I'm so glad they did it," Paul Gringras, Evelina Children's Hospital in London, professor of sleep medicine and neurodisability says.

Gringras an automatic "sleep mode" phone and tablet makers to offer criticism in public health led to a recent study published in the journal Frontiers. "People unfortunately very much as they should, do not control their own behavior, so it is easier for manufacturers to do a duty."

Photographers and designers need to see the right colors can be the shift should be little effect on everyone. Weighed against the benefits to your body when it changed a little bit, even if the viewing experience, seeing the color will be a worthwhile sacrifice.

Apple does not dim the screen to night mode. The company described how it is here:

Many studies circadian rhythms affect you and can make it difficult to fall asleep in the evening exposure to bright blue light is shown. Night shift when it is set in place to determine the geographic location of your iOS device and uses the clock. Then it automatically simplify your eyes, warm end of the spectrum color shifts in your display. In the morning, it returned to its regular settings display. Pleasant dreams.

But the night shift handle warm colors, easy on your eyes, saying, correctly works is misleading: night mode does not reduce eye strain - it will help prevent light from affecting the brain helps.

How does it work

About 24 hours, the internal ones (Latin circa day, is a day for around) - the body's circadian rhythms clocks. Clocks can be adjusted by an external cue, the biologist, and sunlight (to give time for 'German) is a zeitgeber nature's most powerful cue.

Light within the hypothalamus' suprachiasmatic nucleus ", a cluster of neurons in the middle of the brain that trigger relays the eye, detected by. This master body clock so close to the release of melatonin, the pineal gland, blood circulation, and it's time to sleep, indicating a hormone that tells your cells.

Sleep hormone is destroyed by sunlight, but never of melatonin 'Dracula hormone "as it is known. 24-hour melatonin levels rise and fall during the period that affect your physiology and behavior.

Eye color and black and white vision of the 'bars' for 'cones' are used, the photoreceptor cells in the retina through a light feel. "Inner-sensitive retinal ganglion cells, but is also a third category. These photoreceptors only designed for light detection, and the 'cool blue-green wavelengths are particularly sensitive to the visible spectrum and near the end of the' hot 'are not excited by red-orange light.

Fire and old incandescent light bulbs basically modern technology bluer light with light emitting diodes (LEDs) uses the fact, that do not interfere with sleep sntry- Y wavelength emission. Modern displays have high contrast and bright and energy-saving, high-resolution screen and long battery life which are generated.

While gadgets are good for the backlit display, they are bad for the body. Gringras explains, bright LED watching your mind think that this is the day. "It's taking a drug as powerful as a nervous stimulant."

"You sleep onset and melatonin production as much as bright light exposure will delay would need to drink a lot of coffee," Gringras melatonin release limited (on average) by one hour sleep He can delay, said.

Artificial light at inappropriate times to be compatible with the stimulus from the outside world body clock stops. The invention of the light bulb has had many benefits for society, while it has also created some negative effects on our health.

The extent of the problem of artificial light sleep patterns push our busy modern life, made worse by. They chat back before school so children catch up on social media while adults work pressures force, or, for example, to get an early start, late finish.

As a result, Gringras argues that no slack in the system. "They fall asleep and wake up later with more inertia -. More grogginess, perhaps as long as you have enough for your needs and do not reflect the fact that"

An iPhone 5S, iPad Air and Kindle Paperwhite e-reader - - When displaying text in the current study, and his colleagues Gringras different than the light emitted from the devices. This innovative screen-off to confirm that the blue wavelengths.

The researchers then tested the light emission limit two strategies: the orange color (blue block) wearing safety glasses, and a device that adjusts the color palette, the baby sleep doctor, using an app. Both approaches were effective in reducing the blue light, and the team concluded:

Is expected to use at night as the ideal future can be better optimized software design, and hardware, yellow and red, blue and green light emission shifts the automatic "sleep mode" as allow as well as the backlight / light intensity should be reduced.

Health Benefits

Sleep is very important for almost all animals. In humans, such as learning and memory, cognitive functions is especially important for a study, school teachers (one week per night) I had slept 45 minutes less students prophecy were able to predict. Sleep also helps maintain a strong immune system, and reduces the risk of cardiovascular diseases.

The world's biggest public health problems, obesity is one, and overweight is associated with poor quality of sleep being. Without a good night's rest, you run an appetite for carbohydrate-rich foods which 'satiety hormone' leptin 'hunger hormone' Ghrelin high and can be reduced. Because you are hungry want a midnight snack, but you're tired, and therefore instead of gold food is even more tired.

"Given the impact of obesity in the population, is an interesting part of this vicious cycle," blue light can help to limit shows that the Gringras, says. "Maybe you can intervene there and actually start to reduce things."

Apple for its devices a "night mode" is not the only company to add. F.lux applications such as desktop computers can be installed on the night shift for iOS, Amazon Fire tablets Blue Shades feature the following. Apple removed it and its own, proprietary night mode first introduced F.lux was actually available on the App Store. (Note: some applications but only the dim glow of blue light to filter claims.)

An app that users should be aware that because of a built-in night mode, they deliberately installed applications have to download it, will have a small impact on public health . Night shift will be added just as in iOS, Android devices out of the box offering a sleep mode, it will be better.

Sleep maintenance Trackers contrast, does not require any effort using night shift - you have to work do not need to buy additional products. (Note: The Night Shift old devices, only with 64-bit processor will not be available for iPhones and iPads - you issued before 2013 if a product, it can be disabled.)

Professor Paul Gringras a wide section of the population affects the bright blue light that reduces visibility to a night mode that can have a big impact believes. "In terms of public health, what we want is not as perfect or things, but you just want to make small changes in number," he says. "And that is what it will achieve."