Study: depression illnesses cost employers $44 Billion a year in lost productivity

"'People are making it to work,' Dr. Walter F. Stewart, an epidemiologist at Geisinger Health Care Systems in Danville, Pa. and lead researcher for a study reported in The New York Times, said. 'They're just not engaged in work. They're getting to the door, but then closing it and just not functioning. People have called this presenteeism, and it is often invisible to employers.'"