Evidence from observational studies is accumulating, suggesting that the majority of deaths due to SARS-CoV-2 infections are statistically attributable to vitamin D insufficiency and could potentially be prevented by vitamin D supplementation [...]
or being bedridden due to another illness preventing you from sunning yourself.
Don't forget the medical condition of "I'm awake before the sun rises, sitting inside at work while the sun is up, and go home when the sun has already set" syndrome
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Don't forget the medical condition of "I'm awake before the sun rises, sitting inside at work while the sun is up, and go home when the sun has already set" syndrome
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It's because we can't complete photosynthesis without sunlight.