According to a part-time tutor at Cardiff University, Monday will be the crappiest day of the year. He even has a formula used to determine that fact.

It might be a good day to sleep in, says the BBC.

JANUARY BLUES DAY FORMULA:

1/8W+(D-d) 3/8xTQ MxNA

  • W: Weather

  • D: Debt

  • d: Money due in January pay

  • T: Time since Christmas

  • Q: Time since failed quit attempt

  • M: General motivational levels

  • NA: The need to take action