A study tracking the moods of Twitter users has revealed that people are angrier on Thursdays than any other day of the week.Venance/Getty

A study tracking the moods of Twitter users has revealed that people are angrier on Thursdays than any other day of the week.

If you are in a bad mood today, you are not alone.

A study tracking the moods of Twitter users has revealed that people are angrier on Thursdays than any other day of the week.

"We're not really sure exactly why Thursday, but people's bad moods build from Monday until then," said Northeastern University professor Alan Mislove.

"On Friday, it seems people's moods change and they become happier until Sunday when the cycle starts over."

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