this post was submitted on 22 Aug 2025
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Sunlight is also a carcinogen, but that doesn't mean you always stay indoors.
No, of course not. You should apply sunscreen when outdoors
There's no "safe" level of sunlight, even if you wear sunscreen.
10 minutes of sun per day is typically less likely to give you cancer than 0 minutes. Vitamin D (and other compounds involved in the synthesis from cholesterol that you won't get in supplements) upregulate DNA repair polymerases that protect against carcinogens. Of course after a few minutes the costs of UV exposure outweight this benefit though.