Do you ever get stuck in a mental loop, rehashing what happened, replaying what was said, revisiting the scenario over and over again in your head? This is rumination. Rumination is a persistent and repetitive pattern of self-focused thinking, which includes analyzing reasons for negative mood and failure.

The word rumination comes from the Latin term ruminari and means to chew cud—partially digested food that is regurgitated from the stomach for another round of chewing. In fact, the first stomach compartment of ruminants (cattle, deer, giraffes) is known as the rumen. When we ruminate, we are mentally chewing partially digested thoughts. Essentially it is emotional reflux.