#stress #nutrition Vitamin D has been proven to enhance our immunity and immune response. Most in the mid to Northern part of the USA cannot get enough Vitamin D from the sun or foods. Additionally, stress lowers our Vit B levels. Immunity is enhanced with appropriate serum blood level of Vitamin D and lower stress. “Our research gives evidence that Vitamin D strengthens the barrier function of the lung lining, likely helping to prevent or stop an infection.”