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Vitamin D and Covid-19 - The Effects of Indoor Living on Immunity
Sep 27, 2022


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During the Covid-19 Epidemic, many people are highly constrained to their homes. This strategy has been effective at limiting exposure to Coronavirus, but it may be having unintended effects on our vulnerability to other types of infection.

Evolution has led human beings to have a physiology that is innately connected to the natural sun cycle. For example, most people know that Vitamin D is produced in response to sunlight exposure. Vitamin D is a critical component of Calcium absorption and utilization, but it's also important to the optimal function of the immune system.

Vitamin D is particularly important in protecting against lung infections. Vitamin D triggers respiratory macrophages to produce a critical peptide that eliminates viruses and bacteria. Cathelicidin has powerful antimicrobial properties.

Vitamin D also modulates the function of other immune cells to help optimize and organize the attack against particularly dangerous foreign infections. Vitamin D Deficiency suppresses this activity and significantly increases the risk of influenza and other harmful diseases.

There's some evidence that suggests that Vitamin D Deficiency is associated with an increased death rate from Covid-19. Because of this correlation, and the increased pressure to remain indoors during the epidemic, researchers are exploring the potential benefits of Vitamin D supplementation.

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