Caring Bridge - Jon McGregor

The model is: [W + (D-d)] x TQ / M x NA
It's January 24, the “most depressing day of the year,” according to a U.K. psychologist. Dr. Cliff Arnall's calculations show that misery peaks Monday. Arnall, who specializes in seasonal disorders at the University of Cardiff, Wales, created a formula that takes into account numerous feelings to devise peoples' lowest point. The equation is broken down into seven variables: (W) weather, (D) debt, (d) monthly salary, (T) time since Christmas, (Q) time since failed quit attempt, (M) low motivational levels and (NA) the need to take action