Questions tagged [sun-exposure]
The sun-exposure tag has no summary.
23 questions
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Does glass allow UV-A rays to pass while blocking UV-B rays?
According to ThoughtCo (and many other sites):
Glass that is transparent to visible light absorbs nearly all UVB.
This is the wavelength range that can cause a sunburn, so it's true
you can't get a ...
- 10.3k
18
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Are US sunscreens less effective due to FDA regulations?
A recent answer to the question Best sun protection for swimming on a sister site makes the claim "The US market version is hamstrung in order to pass FDA regulations" and expands with the ...
- 594
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Can drinking "harmonized" water prevent sunburn
Osmosis Skin Care offers what they call "Harmonized H2O" This product is a UV Neutralizer-Tan Enhancing[sic]: Boost your body’s defenses with this innovative new technology utilizing frequencies that ...
- 1,089
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Does being near the surface of water increase the risk of sunburn?
I have heard this one from being child (like my mom telling me to be careful)
that one gets more sunburn when near the sea/lake as compared to just being outside.
One source claiming this is webmd....
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12
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Does sunlight cause most of the wrinkles on our faces?
WebMd claimed in a post that:
Exposure to sun causes most of the wrinkles and age spots on our faces. Consider this: One woman at age 40 who has protected her skin from the sun actually has the skin ...
- 34.2k
4
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1
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Do you need specialist filters to look at the sun?
During the UK's recent solar eclipse we were constantly reminded that we should never look directly at the sun because it could damage your eyesight permanently, that you should only look at the ...
- 1,940
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Is it possible to get a suntan while wearing suntan lotion?
In the summer, there is always an increase in advertisements and public awareness campaigns to get people to wear suntan lotion, to reduce the risk of sunburn (naturally).
Some of these ...
- 265
12
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1
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Is it healthy to sunbathe without sunscreen?
An article in The Telegraph starts with:
Researchers followed 30,000 women for 20 years and found that those who avoided the sunshine were twice as likely to die
Women who never sunbathe during the ...
- 34.2k
7
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1
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Does putting a reflective screen inside your car against the windshield have a meaningful impact on internal temperature?
In southern climes one can see many such reflective screens on cars in parking lots. Not all drivers use them, but many do.
Is there a meaningful impact on the internal temperature of your car? Does ...
- 501
10
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1
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Does sun screen cause cancer?
I been recently informed by my little sister who is in high risk for skin cancer and uses sun screen frequently that certain sun screens contain chemicals which are known carcinogens. I wonder if this ...
- 1,311
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Does Vitamin D created by sun exposure get washed off in the shower?
A recent article by Dr Mercola on a health advocacy web site makes a number of claims about Vitamin D production in your skin. The most surprising to me is the claim that you can wash off a ...
- 5,613
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Must one reapply physical sunscreen every two hours?
I have read from several sources online* that any suncreen, even physical sunscreen, must be reapplied at least every 2 hours (or more frequently if you've been swimming or sweating).
For chemical ...
- 161
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3
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Are cheap sunglasses bad for your eyes?
Conventional wisdom and tips in magazines often state that you shouldn't buy cheap sunglasses because they don't protect well against UV rays.
There are two claims in one here, I am skeptical about:
...
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18
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1
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Is it possible to get a sunburn if you're behind a (glass) window?
Someone recently told me that windows act as a kind of "magnifying glass". That doesn't make a lot of sense to me. Here's an example of someone with that belief (in the comments):
Can a baby get ...
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13
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1
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Is there a health risk from nanoparticles in sunscreens?
There have been various stories in the news in the past couple of weeks in Australia about peoples perception of nanoparticles in sunscreen.
To quote from the linked story above:
This week, the ...
- 18.2k