Questions tagged [sunlight]

The tag has no usage guidance.

8 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
4
votes
0answers
50 views

Why do you not need sun protection whe the UV index is 3?

In Australia, they recommend sun protection when the UV index is above 3. Why is this? Surely whenever it's above 0 there are still UV rays hitting your skin? Would 10 minutes in the sun with a UV ...
4
votes
0answers
159 views

Craving sunlight with melatonin?

I have noticed a very strange, but positive, side effect of taking melatonin supplements or cherries high in melatonin (I have blood tests which confirmed food allergies, and apparently my absorption ...
3
votes
0answers
39 views

Are cheap sunglasses dangerous?

Does having any plastic between your eyes and the environment automatically provide UVA and UVB protection? Or do the lenses actually have to be coated (or be comprised of a special type of plastic) ...
2
votes
0answers
81 views

Test UV protection on sunglasses

I bought sunglasses in China that claims to have UV400 protection. I'd like to test this as my eyes' health is on the line :) Is there any way to check the maximum UV amount these glasses can protect ...
1
vote
0answers
2k views

One sunburn peels after 2 days, another after 2 weeks. Why?

I once did a long bike ride that burned my legs (low sun intensity/focus, long exposure time). They were immediately sore but didn't peel until 2 weeks later. I once swum a bit and burned my ...
1
vote
0answers
43 views

What to do against high Light Sensitivity?

Well, I would like to know if there is an way to decrease light sensitivity with Food/operations/technical help/change in Lifestyle or whatever. I am highly sensitive to Light since years but it ...
1
vote
0answers
16 views

How important is having an anti-reflection layer on a glass lens?

There are many factors that play a role when a person chooses their next pair of glasses. For example, I would think that the exact material of the lens would be of crucial importance. Yet, it looks ...
0
votes
0answers
16 views

For how long does the application of topical retinoids increase photosensitivity?

I read on https://www.medscape.com/viewarticle/726464_6: Owing to potential photosensitivity, topical retinoids are best applied at night and patients should not expose themselves to excessive UV ...