It is a common error, and costly, to consider only the physical ailments of your staff rather than the less tangible hardships of circumstances related to grief/loss, life transitions, or the emotions & mindset that may or may not be linked to ailments including depression. Depression itself accounts for $35 billion a year in reduced performance at work. Other pain conditions such as arthritis, headaches, and back problems cost nearly $47 billion, according to two articles published in the Journal of the American Medical Association in recent years.