To juggle is to keep several objects in the air by throwing and catching them quickly. It can also mean trying to manage several tasks or responsibilities at the same time.
From Middle English “jogelen” meaning “to perform tricks”, from Old French “jogler” (to entertain), related to “jongleur”, a medieval entertainer. The idea shifted from trick-playing to the specific skill of tossing objects and then to handling many things at once.
When you juggle tasks, your brain isn’t really doing everything at once—it’s rapidly switching focus, like tossing attention from one ball to another. That’s why mental juggling feels exhausting. Even circus jugglers rely more on rhythm and prediction than pure speed.
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