4 ms·
Cold is correlated with low sunlight, which leads to less vitamin D production: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4463890/ https://www.ncbi.nlm.nih.
by richcollins 9y ago
Cold is correlated with low sunlight, which leads to less vitamin D production:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4463890/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4463890/