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1. SLEEP BETTER
The blue wavelengths that come from our device screens tend to keep us up and alert. This can be a problem if it is within a few hours of your bedtime. You might find it hard to sleep. Blue-blocking glasses can help.
2. REDUCE EYE STRAIN AND HEADACHES
Prevent Blindness, a nonprofit dedicated to mitigating vision loss, also says that early research suggests that blue light can contribute to eye strain. The American Optometry Association (AOA) concluded that extensive device use can create symptoms of eye strain and headaches. If blue light is a possible culprit, then blue-blockers have the potential to help.
3. PROTECT YOUR RETINAS
Studies amassed by the AOA indicate that prolonged exposure to blue light such as sunlight or excessive exposure to device screens might cause damage to your retina -- the innermost layer of your eye that sends signals to your brain to process what you are seeing. Blue-blockers can help.
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Scott Campbell
Clic for large map: Johns Hopkins University Coronavirus Map
https://www.thetimes.co.uk/article/chinese-scientists-destroyed-proof-of-virus-in-december-rz055qjnj
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