Also — severe cold/ flu / Covid is linked to low vitamin D deficiency ( common in elderly in nursing homes— cause they rarely go outside)
Healthy adults and kids and elderly who “go outside “ and get regular sunshine for an hour or so everyday rarely get “ colds, flu,Covid-/
All the “books” from the 40’s/50’s/60’s recommended at least 1-3 hours sunlight for babies daily to prevent illness
Also — severe cold/ flu / Covid is linked to low vitamin D deficiency ( common in elderly in nursing homes— cause they rarely go outside) Healthy adults and kids and elderly who “go outside “ and get regular sunshine for an hour or so everyday rarely get “ colds, flu,Covid-/ All the “books” from the 40’s/50’s/60’s recommended at least 1-3 hours sunlight for babies daily to prevent illness