For several years the media has claimed that yesterday, the first full day back at work following the holidays, is the most depressing day of the year. Buzzfeed points out that
scientific data does not back up this theory, and that many studies have
actually debunked the myth. The idea came from a 2005 lifestyle coach who used
a formula to decide Blue Monday is the most depressing day of the year as part
of a campaign for Sky Travel.
Over the years insurance companies and hotel chains have used the myth to get into the media. Most recently an online divorce company has dubbed the day “Divorce Monday,” claiming is the most popular day for divorce proceedings to start.