It is known that light exposure suppresses melatonin secretion. Melatonin is a hormone which can influence circadian rhythms. Lower melatonin levels may explain the preliminary evidence of links to cancer.

Blue Light is the specific section of the visible light spectrum that can have harmful effects to our eyes and sleep.

Artificial blue light is emitted from LED lighting and from digital devices. Our close proximity to the device when viewing, especially over long periods of time, means that the harmful blue light can affect us and our children’s wellbeing.

The rays of the sun may appear to be colorless, but they're actually made up of red, blue, orange, yellow, green and violet hues. Red and orange are located at one end of the visible light spectrum, while blue and violet are at the other.

Red rays have long wavelengths, but produce less energy. At the other end of the spectrum, the wavelengths are shorter, but the energy is stronger. Because blue rays emit higher amounts of energy, they're more likely to affect your eyes.

Most of your exposure to blue light comes from the sun, but you can't avoid exposure simply by staying indoors. In addition to computer monitors and smartphones, blue light is produced by tablets, LED and fluorescent lights, LED light from TVs and compact fluorescent light bulbs.

Although blue light plays an important role in maintaining the sleep/wake cycle, regulating your mood and keeping your memory sharp, it may harm your eyes.

Long exposure to blue light may have been responsible for your symptoms. Blue light lowers the contrast on screens, causing the condition. Other factors that can contribute to eyestrain include poor lighting, failing to take regular breaks, less frequent blinking and dry air.

Long-term exposure to blue light may increase your risk of developing age-related macular degeneration (AMD). AMD occurs when the macula, the area of the retina responsible for central vision, is damaged.

Fluorescent light bulbs and LED lights do provide more energy efficiency than traditional incandescent bulbs. They also give off more blue light. Incandescent lights do produce some blue light, although less than most of the fluorescent light bulbs available.

During the two to three hours right before bed, avoid viewing bright screens.

Wear blue-blocking glasses or download an app to filter blue and green wavelength at night. This will help those that need to use electronic devices at night and individuals working night shifts.

Red light has the least influence on the circadian rhythm. Consider using dim red lights in bedrooms.

Add screen filters to computer screens, tablets and smart phones to reduce blue light emissions.

Use computer glasses that have yellow-tinted lenses that increase contrast and help block blue light.

Wear anti-reflective lenses to block blue light from digital devices and the sun.

Consider choosing an Intraocular lens (IOL) that protects eyes from blue light. This will replace a cloudy lens during cataract surgery.

For children, especially from birth to age three, the crystal lenses in their eyes are not fully developed. So it goes straight through, it causes a lot more damage in children’s eyes than it does in adults.

Blue light does affect the body’s circadian rhythm, our natural wake and sleep cycle. During the day, blue light wakes us up and stimulates us. But too much blue light exposure late at night from your phone, tablet or computer can make it harder to get to sleep.

Blue light from computer screens and digital devices can decrease contrast leading to digital eyestrain. Fatigue, dry eyes, bad lighting, or how you sit in front of the computer can cause eyestrain. Symptoms of eyestrain include sore or irritated eyes and difficulty focusing.

Studies suggest that continued exposure to blue light over time could lead to damaged retinal cells. This can cause vision problems like age-related macular degeneration.

After cataract surgery, the cloudy lens will be replaced with an intraocular lens (IOL). The lens naturally protects the eye from almost all ultraviolet light and some blue light. There are types of IOL that can protect the eye and retina from blue light.

Screen filters are available for smart phones, tablets, and computer screens. They decrease the amount of blue light given off from these devices that could reach the retina in our eyes.

Right now a lot of people are still choosing to go to Toronto instead of shooting in New York City, something I haven't done and something I hope I'll never have to do.

Reducing carbon emissions is important, but it is shortsighted if not coupled with reducing the toxic emissions from our heart; and that is something spiritual leaders are supposed to teach and something all thinking people, regardless of their beliefs, should practice.

We've enshrined the purity, sanctity, value, and importance of bringing children into the world, yet we don't discuss death. There used to be an enshrined period where mourning was a necessary part of going through the process of grieving; death wasn't considered morbid or antisocial. But that's totally gone.

Any kind of blockage is heart disease; when you have a blood clot anywhere, that's heart disease. When Wilt Chamberlain died, strongest man I ever met in my life, I started paying attention.

By the time of the Civil War, there were many kinds of apples growing across the United States, but most of them didn't taste very good, and as a rule, people didn't eat them. Cider was cheaper to make than beer, and many settlers believed fermented drinks were safer than water. Everyone drank hard cider.

My lifes purpose is to write poetry but behind the poetry must be the vision of a fresh revelation for men.

The people of my country want the two freedoms that spell security: freedom from want and freedom from fear.

In the sense that you're not at the centre of power, like a president or prime minister of a major power, everyone is marginalised; my position doesn't isn't unique in that respect. I think there are different sorts of relevance in different contexts.

When it comes to serious cuts to major programs like Medicaid, the American people are not calling for leadership but magic. They want cuts with no pain.

My first job in Brazil was actually to develop a way to improve the readability of billboards, and based on speed, angle of approach and actually blocks of text. It was very - actually, it was a very good study, and got me a job in an ad agency. And they also decided that I had to - to give me a very ugly Plexiglas trophy for it.

I think I was drawn to acting just as a way of getting noticed.

Time is but the stream I go a-fishing in. I drink at it; but while I drink I see the sandy bottom and detect how shallow it is.

I always say, 'Man, the Creator is preparing me for something. He's keeping the sun on me for some reason. He's keeping me aligned with that generation.' Because I genuinely love people, I love hip-hop, and I love using it as a tool to communicate and to create a better vibration. Life is short. I guess I'm lined up for a reason.

Certainly paleontologists have found samples of an extremely small fraction, only, of the earth's extinct species, and even for groups that are most readily preserved and found as fossils they can never expect to find more than a fraction.

I get uncomfortable when people give me presents and watch me open them. I dont have birthday parties because the idea of a group of people singing and looking at me while Im blowing out candles gives me hives.

We are always doing something for posterity, but I would fain see posterity do something for us.

When I was coming up as an entrepreneur, I had to fight for everything I got, and there was no clear roadmap of how to be successful.

There's that thing that if you want to have any kind of lasting love, I think you have to love the whole person and not just the parts of them that you choose.

When students and liberals initially occupied Tahrir Square, it looked like it might be a passing thing.

We want to make sure the thing you're looking for is on Google 100 percent of the time.

My life had no meaning at all. I found only brief interludes of satisfaction. It was like my whole life had been about my whole basketball career.

Courage to be is the key to revelatory power of the feminist revolution.

Then I despair... I remember that all through history, the way of truth and love has always won. There have been murderers and tyrants, and for a time they can seem invincible. But in the end they always fall. Think of it always.

Cowards may die many times before their death