[boxed]

That logic is extremely broken. People who spend more time outside do so because of more physical activity. The sun exposure is a side effect. Drawing the conclusion that sun exposure is therefore safe is just totally bonkers.

[cush]

The study in the article controlled for that

[krupan]

He specifically mentions sunbathers. Not landscapers or construction workers

[anon373839]

That is also selection bias. People who spend more time outside relaxing may have lower stress levels? Stress definitely contributes to cardiovascular illness.

[krupan]

Ok, so stop worrying about the exact mechanism, stop arguing on the Internet, and just get outside!