Blue light is a part of the light spectrum operating  between 400-500 nanometers (nm). Blue light is emitted from all artificial light sources including computer screens, TV screens, cell phones, tablets and light bulbs. Although referred to as ‘blue light’, it may not always appear visibly blue.

Blue light has a very short wavelength, and so produces a higher amount of energy.

Recent scientific studies have shown exposure to the blue light spectrum may cause serious long-term damage to your eyes and suppress the production of melatonin. 

Because the human eye is not very good at blocking blue light, it is able to penetrate all the way to the retina (the inner lining of the back of the eye). Laboratory studies have shown that too much exposure to blue light can damage light-sensitive cells in the retina. This causes changes that resemble those of macular degeneration, which can lead to permanent vision loss.

We are surrounded by blue light every day and sometimes, without knowing. All artificial, electric-powered lighting produced some level of blue light, even if it doesn’t look ‘blue’. 

The most common sources of blue light include;

• Mobile & tablet screens
• Computer monitors
• Flat screen televisions
• Fluorescent and LED lighting

 Because short-wavelength, high energy blue light scatters more easily than other visible light, it is not as easy for the eye to focus on. This means that when you’re looking at computer screens and other digital devices, this unfocused visual “noise” reduces contrast and can contribute to digital eye strain.

There is also research that suggests that that excessive exposure to blue light, especially at night, can cause negative effects to your health such as several types of cancer (breast, prostate), diabetes, heart disease, obesity, and various sleep disorders.

I know I am always trying to improve my quality of sleep each night and have the fear of regressing with my history of “adrenal exhaustion” (HPA Axis) burnout.  If you wake up in the middle of the night wide awake you make have hormonal disruption of your adrenals and melatonin causing chaos with your sleep-awake cycles or rather your circadium rhythm.

Improve your sleep by:

• wearing your blue blocking glasses
• stay off the computer, electronic devices, and phones before bed (especially in bed!)
• decrease your intake of refined sugars and excess carbohydrates
• relax and create a calm environment for sleeping to switch in the PNS (rest & digest)
• learn more in my book THE WHOLESTIC METHOD MANUAL & WORKBOOK on Amazon