The importance of light for sleep and waking

You may have already heard of our "biological clock".

What is it about?

“Biological clock” is the term used to refer to our “circadian rhythm.”

The circadian rhythm is nothing more than a 24-hour physiological cycle, which regulates the main functions within our body.

Among the most important functions it regulates, there is the sleep-wake cycle.

This cycle is regulated by light.

During the day, the blue light emitted by the sun keeps us awake and active.

This mechanism is regulated by our eyes which, detecting the blue light emitted by the sun, communicate this signal to our brain via the optic nerve.

At night, blue light is absent in nature.

The absence of blue light in the evening causes the production of melatonin, the sleep hormone, from our brain to prepare us for rest.

But in the last little over a century, things have changed.

After the discovery of electricity and then artificial lighting, we started to be exposed to blue light in the evening too.

Things have gotten worse in recent decades, after the mass introduction of smartphones, PCs and LED light bulbs.

In fact, most of us spend many hours in the evening using these devices, and are therefore bombarded with blue light.

This blue light is perceived by our brain as a signal that it is still daytime.

Our body's production of natural melatonin is then blocked.

And it gets worse!

Blue light causes our brains to produce cortisol, also known as the “stress hormone.”

This is because cortisol is produced during the day by the blue light emitted by the sun to keep us awake and active.

So today we find ourselves with low levels of melatonin in the evening and high levels of cortisol.

This destroys our circadian rhythm and in particular our sleep.

Our days nowadays have many hours in which we are exposed to blue light.

Until just over a century ago, we were only exposed to warm light in the evening.

This allowed us to fall asleep within minutes and sleep deeply, thanks to our body naturally producing melatonin.

The screens of electronic devices such as smartphones and TVs emit very high amounts of blue light.

Even the lighting in our homes, which has been LED for a few years, produces very high amounts of blue light. This blocks our body's production of melatonin.

As we have seen, this ruins our sleep and can cause burning eyes.

This is why it is important to protect your eyes from blue light in the evening.

Prevent blue light from hitting our eyes in the evening, It allows us to improve the quality of sleep, sleep deeply and fall asleep in a few moments, thanks to the correct production of melatonin by our body.

If you want to continue using your normal home lights and electronic devices in the evening, make sure you protect yourself from blue light by wearing a pair of chronobiological glasses such as No Blue Light Glasses 2-3 hours before going to sleep.

We spend 1/3 of our life sleeping and the other 2/3 are influenced by how we spend the third we sleep…

There is no physiological process that impacts our well-being, health and vitality more than good sleep.

Don't let today's lifestyle rob you of quality rest.

You can try No Blue Light Glasses risk-free for 60 days.

Shipping costs and any returns are currently free.

If you are not satisfied, you can return them with a refund equal to 100% of the amount paid, with return costs possibly at our expense.

I'm so confident that you'll be thrilled with the changes No Blue Light Glasses will bring to you that I don't want you to take any risks trying them.

There's just one problem…

In the last few months we have been receiving more and more orders and having to wait for the new glasses for about 40-50 days, we have some models that are selling out quickly.

I recommend you order them as soon as possible to avoid long waits and having to postpone nights of deep and restorative sleep…