Another theory is that the boxes placed in churches where parishioners deposited coins for the poor were opened and the contents distributed on December 26, which is also the Feast of St. Stephen. As time went by, Boxing Day gift giving expanded to include those who had rendered a service during the previous year.
For men, the normal range for ferritin is 24 to 336 nanograms per milliliter, and for women, the normal range for ferritin is 11 to 307 nanograms per milliliter, explains Mayo Clinic. These are measured in standard units. Continue Reading.
If your ferritin levels are low, it means your iron levels are also low. The healthy range of serum ferritin lies between 20 and 80 ng/ml. Below 20 is a strong indicator that you are iron deficient, and above 80 suggests you have an iron surplus. The ideal range is between 40-60 ng/ml.