[scrozart]

This source is a lifestyle rag for people who hike, camp, etc. They're recently posted some super unscientific stuff about not wearing sunblock so you get all your Vitamin D.

[leg100]

> about not wearing sunblock so you get all your Vitamin D.

There's something to be said for that. And there's something to be said for putting on sunblock.

The two aren't mutually exclusive; both have their benefits.

[collyw]

Vitamin D is generated by exposure to sunlight, what is controversial / unscientific about that?

[rootlocus]

> super unscientific stuff

That's a very scientific assessment of the stuff.

[asimpletune]

One thing I don’t understand is why do people who spend more time to outdoors have lower rates of malignant melanoma?

Also, why haven’t malignant melanoma rates gone down as sunscreen adoption has increased?

Not taking a particular stance, just asking questions.

[anonymouswacker]

Sunblocks often have chemicals that leach into the brain/blood with alarming effects... and more people suffer from Vitamin D deficiency than skin cancer from prolonged exposure...

[i_cannot_hack]

Well, Vitamin D deficiency is easy to treat with supplements instead. And I would say skin cancer is rather more serious than Vitamin D deficiency. I don't think the goal should be to have skin cancer and Vitamin D deficiency be equally common.

[ch4s3]

You're saying that sunblock enters the blood stream through the skin and that some of the ingredients can cross the blood brain barrier? Titanium dioxide and Zinc oxide are generally recognized as safe by the FDA. The ingredients that are somewhat questionable aren't sold in the US or Europe.