Rumination is a loop of repetitive, unproductive thoughts about something that’s bothering you. If you’re not sure how often you ruminate, now you can start to notice. Most stress triggers are short-lived, but we humans have the remarkable ability to give them a vivid and extended life in the mind, letting them fill our headspace long after the event has passed. Rumination, also known as brooding, can slip into a more serious state known as depressive rumination, which includes negative thoughts about oneself and one’s future. Those thoughts can be toxic.

