VITAMIN D DEFICIENCY REACHING EPIDEMIC PROPORTIONS
IN INDIA SAYS DR.MICHAEL HOLICK,ENDOCRINOLOGIST 
& GLOBAL AUTHORITY ON VITAMIN D THERAPY.

Vitamin D essential nutrient needed by the body to absorb Calcium & for
bone health,is synthesized in the skin on exposure to sunlight.It is steroid
harmone that influences virtually every cell in the body,which is why 
maintaining a healthy level is so important. That is why in Yoga 
"Surya Namaskar" in the open area is stressed upon.