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by jms 987 days ago
I've been living in Australia and New Zealand, and have been terrified of sun exposure - during peak times (summer mid-day) it's scary how quickly you can burn.

However I also have low vitamin D.

My current strategy is to check the UV levels (I've got a widget on my personal dashboard) and whenever the UV levels are moderate or below, I try to get as much sun exposure as possible - shorts and t-shirt, or topless.

I then cover up when the UV levels are demonstrably high.

My theory is that low levels of exposure are very good - you get your vitamin D, whatever else you need, and your body starts to build an appropriate amount of melanin.

The worst thing to do is to avoid sun all the time, then suddenly get massive UV doses.

I've noticed that my hands very rarely get burned compared to other areas - my theory is due to constant exposure that part of my body is more resistant compared to the pasty areas.

My key point is that you can view the UV rating and protect yourself appropriately - e.g. high caution summer-midday, zero caution winter mid-day.

3 comments

I'm in Australia and used to cycle here a lot. The back of my hands got a ton of exposure. They rarely burned, but now the skin on the back of my hands is visibly older than everywhere else. Looser, wrinklier, less elastic.

I'm glad I was forced to wear a helmet because otherwise my head would look weird ;)

>due to constant exposure that part of my body is more resistant compared to the pasty areas.

This is of course true, and it took me half a lifetime to realize I could get deep tans and stay out in the sun without any sunscreen, all it took was to "DCA" my way into sun exposure at the beginning of the summer. Concerted efforts to get 5, 10, 15, 20, 25, 30 minutes of unprotected sun exposure that slowly increase but not to the point of burning.

I also realized that sunscreen does not need to be so liberally or frequently applied- particularly mineral sunscreen, the thinnest possible film is all that is needed for hours of protection if you aren't swimming or sweating excessively.

It goes against mainstream advice that no sun exposure is good exposure, and that getting a tan is not healthy. However I never "tan" my hands and they don't look any darker, but I've never burned them, even though they're the place that will get the most sunscreen rubbed off. Ditto for feet.
>It goes against mainstream advice that no sun exposure is good exposure, and that getting a tan is not healthy

Yeah it does. But we are also here at this article.

Where do you get the UV data from?
Our weather forecasting agencies also forecast UV exposure, it gets reported as the "UV Index"
Don't really need it, while the sun is low in the sky you're relatively safe to get a bunch of sun.