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

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.

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.

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.

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.

I did an internship in the Silicon Valley during the Internet boom. I couldn't imagine sitting in a cubicle the rest of my life, so I gave acting a try. I would have been happy doing theater and making nothing.

There's more outrage on Twitter about a One Direction split or about what one band member said to another than there is about institutionalized racism and something huge.

The night before the Nobel announcement every year, I've gone to bed feeling quite anxious. I was optimistic, and also I knew it might never happen.

I believe that things happen for a reason. I think there are no coincidences in life.

All crime is a kind of disease and should be treated as such.

I know for works for me - those wonderful sad love songs.

Time travel is complicated, or so we think, since we have not yet managed to actually figure out how to do it.

It cannot be said often enough that science fiction as a genre is incredibly educational - and I'm speaking the written science fiction, not 'Star Trek.' Science fiction writers tend to fill their books if they're clever with little bits of interesting stuff and real stuff.

And I told her point blank, you've got everything to live for. You've got such talent. You're back singing great, lose the weight. And she went and did it, and look at her now!

The thing I'm always trying to do when I write is hit that sweet spot where the book both keeps you up late at night, and yet a week after you've finished, it still pops back into your head.

There's that popular misconception of man as something between a brute and an angel. Actually man is in transit between brute and God.

Many cultures believe that on a certain day - Halloween, the Irish Samhain Eve, Mexico's 'Dia de los Muertos' - the veil between this world and the next is especially thin.

Vin Diesel is the best kisser in the world, better than anyone else I've ever had. The most attractive thing about Vin is his brain. That's his most attractive muscle.

Change and renewal are themes in life, aren't they? We keep growing throughout life.

That women are mysterious and unknowable is something every young man grows up believing. Men, on the other hand, never think of themselves as mysterious or confusing, and we are often at a loss as to why women want to figure us out.

In taking stock of ourselves, we should not forget that fear plays a large part in the drama of failure. That is the first thing to be dropped. Fear is a mental deficiency susceptible of correction, if taken in hand before it gains an ascendency over us. Fear comes with the thought of failure.

Information and knowledge: two currencies that have never gone out of style.

Being very famous is not the fun it sounds. It merely means you're being chased by a lot of people and you lose your privacy.

From the age of six I wanted to be an artist. At that point I meant a painter, but it turned out what I really meant was I was someone who was very interested in watching the world and making copies of it.

If you insist on keeping hell or even earth you will never see heaven. If you accept heaven you will not be able to retain even the smallest and most intimate souvenirs of Hell

The River... It's my world, and I don't want any other. What it hasn't got is not worth having, and what it doesn't know is not worth knowing. Lord! the times we've had together!

I love Baltimore and the people who call it home, and I sincerely believe that Maryland's biggest city must serve as the economic and cultural heart of our state.

Presidents with strong nerves are decisive. They don't balk at unpopular decisions. They are willing to make people angry. Bush had strong nerves. Clinton, who passed up a chance to eliminate Osama bin Laden, did not. Obama is a people pleaser, a trait not normally associated with nerves of steel.

I was in my dad's church, his Baptist church, and I think the first song I ever performed was 'Jesus Be a Fence Around Me.'