Observations: Another reason vitamin D is important: It gets T cells going

Given that most are Vit D deficient, this one has big implications:

Observations: Another reason vitamin D is important: It gets T cells going:

"Vitamin D deficiency has been linked to a rapidly expanding inventory of ailments—including heart disease, cancer and the common cold. A new discovery demonstrates how the vitamin plays a major role in keeping the body healthy in the first place, by allowing the immune system's T cells to start doing their jobs."