Overview

• Argentine outlets explain that lining up banknotes by denomination often reflects a preference for order, structure and a high need for control.
• Specialists note the practice is typically harmless and practical, with many using it to reduce stress and feel more secure about finances.
• Experts caution it raises concern when the behavior becomes repetitive, uncontrollable, distressing or interferes with relationships, work or routines.
• Clinical bodies describe obsessive–compulsive disorder as intrusive thoughts and ritualized actions performed to ease anxiety, with onset commonly in youth or early adulthood.
• Recommended treatments include cognitive‑behavioral therapy and, when indicated, SSRIs, which can meaningfully reduce symptoms even without a definitive cure.