Sunlight Is Important for the Prevention of Blindness
When Sunlight enters our eyes, it not only goes to your visual centers enabling you to see, it also goes to your brain’s hypothalamus where it impacts the entire body.
The hypothalamus controls body temperature, hunger and thirst, water balance and blood pressure. It also controls the body’s master gland, the pituitary, which secretes many essential hormones, including those that influence your mood.
Our body clock is also housed in tiny centers located in the hypothalamus, controlling thee body’s circadian rhythm. This light-sensitive rhythm is dependent on natural cycles of light and darkness, to function optimally.
Consequently, anything that disrupts these rhythms, like inadequate sunlight exposure to the body or chronic exposure to unopposed blue light from artificial lights, has a far-reaching impact on your body’s ability to function.
Some experts even believe that mal-illumination to light is what mal-nutrition is to food.
The best way to get exposure to healthy full-spectrum light aka Sunlight is to do it the way nature intended, by going outside, exposing your bare skin and bare eyes to the Sun daily.
Full-spectrum light such as Sunlight is also a significant factor in blindness and optimal health.
The widespread use of energy efficient light-emitting diodes (LEDs) may be setting the stage for an avalanche of sight problems in coming decades. The reason for this is because LED lighting has no near-infrared light, emitting primarily blue light, and this has biological consequences that impair vision over time.
The heat generated by incandescent light bulbs is actually highly beneficial to your health, and hence worth the extra energy cost.
In our eyes, the near-infrared light range primes the cells in your retina for repair and regeneration from the damage blue light causes in the retina, and LEDs, which have virtually no infrared and an excess of blue light, generates reactive oxygen species (ROS) instead.
We need some blue light, especially in the morning for melatonin production, but we need it to be balanced with the healing and repairing red and near-infrared frequencies, like it is in natural sunlight.
This explains why LEDs are so harmful for our eyes and overall health.
The same applies to electronic screens such as TVs, computers, tablets and smartphones. They all emit primarily blue light, and the excess ROS generation may have a great deal to do with the deterioration of vision. The blue light is also deleterious for your circadian rhythm. Electronic screens should be avoided at least a couple of hours before bedtime to avoid suppressing melatonin production.
It seems the more we learn about light, the more importantant it appears to be for biological functioning and optimal health. It’s important to realize that light is actually a significant part of the equation for biological energy production, specifically at the mitochondrial ATP level.
Light affects our overall health, not just oour eyes.
Importantly, full-spectrum light, meaning light that includes the near-infrared spectrum (750 to 1400 nm) generates structured water in our cells, which plays an important role in biological functioning, including our cardiovascular function.
To protect our eyesight and overall health, be sure to get bright Sun exposure especially in the early part of the day and, when indoors, use clear incandescent light bulbs in areas where you spend most of the time.
Candles can also be used, especially at night, and are even better and healthier than incandescents.
Experts say that it is imperative to use blue-blocking glasses after sunset, unless the only light exposure you have is candles. Once you have your glasses on, it does not matter what kind of light bulbs you use.
When it comes to computer screens, it is important to reduce the correlated color temperature down to 2,700 K, even during the day, not just at night. It is better to set it below 2000K or even 1000K.
Iris is better because it has 3 levels of blue blocking below f.lux: dim incandescent, candle and ember.
It is important not to expose the retina to the damaging effects of blue light after sunset.
Eat healthy, Be healthy, Walk in the Sun, Live lively
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