Can math predict the worst day?

January 24. Monday. Can this really be the worst day of the year? A British psychologist has developed a mathematical formula to predict the worst day for people.

y = [(W + (d-d)) * TQ]/(M * NA)

What do you think of the formula? What are all those variables? Do you think the feelings of people can be predicted from equations?

Now I'm heading off to the dentist. Can you predict how I feel?