Have you been inside all day maybe for the last few weeks, months, or  your entire life? Then you could be experiencing vitamin D deficiency. Traditionally, low levels of vitamin D was associated with rickets, but current research is linking it to an assortment of other health problems such as pain and muscle weakness, cognitive impairment, and cancer. Vitamin D deficiency contributes to the overall health of our body systems, including the immune system, the autoimmune system, the Continue Reading