Last week's video on the relationship between sun exposure and cancer was our most popular video ever. We had more than 100,000 views and would have had more but all the traffic crashed our servers. Good problem to have as more people are getting the truth so they can Take Control of Their Health.
If you haven't watched the cancer video yet please do.
The UVB blocking sunglasses will NOT interfere with you absorbing vitamin D. Vitamin D is produced from cholesterol that is your skin and then it is absorbed from your skin into your bloodstream. So if you are swimming you can certainly get a sun burn but you will not absorb very much vitamin D as the water will instantly wash it off.
Also if you use sunblock you are blocking the UVB that will cause your skin to produce vitamin D.
But even though the UVB blocking sunglasses will not interfere with vitamin D formation I do believe they should be avoided. First of all I don't advise that you wear sunglasses in the first place as they block some of the 1500 wavelengths that are essential to health. It is important for these different radiation levels reach your retina as that is a direct extension of your brain and is an incredible brain nutrient.
About the only time that wearing sunglasses is appropriate is when you are skiing or on the ocean when there is simply so much sunshine that you need to block it out.
Having said that you need to have common sense. You don't want to be staring at the sun and you want to have reasonable sun exposure. It is just like Goldilocks, you want just the right dose, not too little and not too much. That amount varies for nearly everyone based on a variety of factors, such as age, sex, time of year, cloud cover, latitude, altitude, antioxidant levels and many other factors.
The Other Two Questions Addressed in This Video:
Cancer Risks Due to Long Term Vitamin D Deficiency
Night Lights for Children
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