"Science has proven that melatonin production in the brain is affected by the color of light the eyes see during sunrise and sunset..."

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"Science has proven that melatonin production in the brain is affected by the color of light the eyes see during sunrise and sunset..." "Learn how to increase melatonin levels for better health and a more natural sleep" Melatonin is a powerful sleep hormone, antioxidant, anti-aging agent, immunoregulator, anti-depressant and sexual hormone regulator! Melatonin is produced naturally in the human body by the pineal gland in the brain. When the eye sends signals to the brain that night is falling, the pineal gland is activated to produce melatonin. Melatonin then works to induce feelings of drowsiness, acting as the signal to the body that it’s time for bed. However, melatonin production can be suppressed by artificial nighttime lighting. The pineal gland is connected to sensors in the eye via a network of nerve fibers. When light is not striking the eye, the pineal gland is able to produce melatonin. When light is present, melatonin production is suppressed. Artificial nighttime lighting can have a harmful effect on the body, as the production of the hormone melatonin is reduced and the body does not receive effective signals to slow down and prepare for a night of restorative sleep. "Artificial light from a laptop screen, or TV at night is enough to interfere with melatonin production..." Studies have shown that the photoreceptors (or light sensors) in the pineal gland are most sensitive to light in the blue part of the spectrum. This is because when blue light hits the eye, these photoreceptors are receiving the message that it is daylight and the brain should stay awake and alert. Ever since Thomas Edison invented the first commercially practical light bulb, our eyes have been exposed to artificial lighting long after darkness has fallen. This has been compounded in more recent years with harsh fluorescent light from the television and computer screens we look at during the evening. All of this has an effect on our body’s natural circadian rhythms. More specifically, blue light continues to hit those photoreceptors hours after night has fallen, and our pineal gland does not get the message to switch into melatonin production mode and trigger the physiological signs that we need to sleep. But if we prevent blue light from hitting those sensors, the pineal gland can be activated to produce melatonin. "Activate the pineal gland for a natural, safe and effective way to boost melatonin production prior to bedtime" Researching the effects of light on melatonin production Tests have conclusively proven that different light wavelengths have different effects on the body’s melatonin production. In a test performed in 2001 by Debra Skene at the University of Surrey, light was shone into volunteers’ eyes in the middle of the night, when melatonin production levels are at their peak. Melatonin production was found to be clearly sensitive to light: production levels decreased as light intensity increased. However, what was interesting was that the different wavelengths of light produced different results. The shortest wavelengths, what we see as dark blue, caused the greatest drop in melatonin. What is particularly interesting is that the rods and cones in the retina barely detect this wavelength of light. "Skene concluded that there must be a third, still unknown type of photoreceptor that tells the brain when to stop making melatonin" A further study in 2002, by David Berson of Brown University, went on to confirm that a new type of photoreceptor existed. Berson described them as a type of retinal ganglion cell. These cells extend long projections into a part of the brain called suprachiasmatic nucleus (SCN). They transmit information directly from the eyes into the region of the brain that regulates the circadian clock These photoreceptors are the sensor in the pineal gland that receive the blue light, which signals to the pineal gland to stop producing melatonin. What these tests found was that there are two completely separate systems in operation in our eyes. One, using rods and cones, allows us to see things. The second controls the release of melatonin. The photoreceptors receive information directly from the eye to the part f the brain that regulates our body clock, or circadian rhythm. In 2003 it was confirmed by Lockley et al that the shorter wavelengths of light have a greater effect on melatonin production. The short 460 nanometres (nm) wavelengths of light suppress melatonin twice as much as longer 555 nm light, the wavelength best seen my the human eye. "It was demonstrated that if we can control the wavelengths of light reaching the eye, we can control our internal clocks" In 2005 Christian Cajochen at University Basel in Switzerland, successfully reset the circadian clocks of test subjects through the use of colored lights. Test subjects were exposed to indigo-blue light with a wavelength of 460 nm, green-yellow light with a wavelength of 550 nm, or complete darkness. The researchers then monitored each subject’s sleep / wake cycle. Subjects in complete darkness showed normal nighttime trends of reduced core-body temperatures, slower heart rates, higher melatonin production and increased sleepiness. Exposing subjects to the indigo-blue light suppressed melatonin production and other normal nighttime trends. Green-yellow light had a minimal effect. In 2007 a further study by Farhan Zaidi et al, at the imperial College London concluded that there are two separate functional light sensing systems in the eye: one for vision, and one for setting our sleep / wake pattern. Blind people who lack rods and cones in their eyes but still have functional blue light sensitive ganglion in their eyes were still able to unconsciously sense whether it was light or dark by detecting blue light. By shining a light in their eyes, the researchers were able to delay the subjects’ body clock cycle, proving that their ganglion cells still registered light. The blue light caused melatonin production to drop by 60%, while at the same time alertness sharpened and brain activity increased, demonstrating that the body clock had been tricked into thinking it was daytime. The wavelength of 480 nm which the retinal ganglia are so sensitive to, is in the blue spectrum. In fact, it is very similar to the color of the sky on a bright sunny day. Bright lights, especially blue lights, tell our brain that it is morning. Thus if we can filter out that wavelength of blue light, we can fool our brain that it is night. "Solving many sleeping problems can be as simple as wearing SleepWell specs before bedtime..." SleepWell specs are a sleeping aid containing specially filtered lenses which block the wavelength of light that is picked up by sensitive photoreceptors in the pineal gland. By effectively filtering these wavelengths of light, SleepWell specs switch the pineal gland into its melatonin production mode, causing increased melatonin in the blood stream and the body to prepare for sleep and rejuvenation. Wearing SleepWell specs at night prevents the nighttime suppression of melatonin caused by an environment of artificial lighting. Wearing SleepWell specs for 3 hours prior to bed is an effective way to stimulate and increase melatonin production. It can be as easy as wearing them for nighttime reading, TV or computer use. "SleepWell specs are the natural solution" Sleep Well specs work by filtering the specific wavelengths of light that are responsible for shutting down melatonin production in the brain. Recent discoveries have demonstrated that if light contains only wavelengths greater than 530mn, such light will not suppress melatonin production in bright-light conditions. SleepWell specs contain prescription grade CR39 lenses and are currently the ONLY eyewear available in the world that correctly filter these distruptive wavelengths. Trouble concentrating, sleeping problems, low energy levels and mood are controlled by the chemicals within our bodies. It all comes down to chemistry. Wearing SleepWell specs leading up to bedtime will allow the natural production and increase of melatonin in the body and will result in a dramatically improved natural sleep.