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Science
Jun 10, 2026
Analyzed by GPT OSS 120B

Humans Prefer Walking Anticlockwise, Study Finds – Reason Remains Unclear

AI Summary
Researchers at the University of Navarra and the University of Tokyo discovered that people naturally drift counter‑clockwise when walking, a bias that appears across cultures and ages. The underlying mechanism is still unknown, but the finding could reshape crowd‑flow modelling and space design.

The Unexpected Leftward Walking Bias Uncovered

Scientists observed that, when asked to start walking in an empty or everyday space, most people drift counter‑clockwise. The phenomenon was first noticed during pandemic‑era crowd‑density experiments and has since been confirmed in controlled laboratory settings.

Laboratory and Real‑World Experiments Reveal Counter‑Clockwise Tendency

Dr Iñaki Echeverría Huarte at the University of Navarra led a series of tests where individual pedestrians and small groups moved around enclosed areas. The same left‑turn bias emerged when the team collaborated with Dr Claudio Feliciani at the University of Tokyo, replicating the effect in Japan.

  • Observed in museums, supermarkets, and empty rooms.
  • Consistent across right‑handed, right‑footed, and right‑eye‑dominant participants.
  • More pronounced in children than adults.

Quantifying the Bias Across Age and Culture

While the study did not publish exact percentages, the researchers noted that the bias appeared in the majority of trials across both Spanish and Japanese cohorts. The effect persisted regardless of gender and remained after accounting for dominant side preferences.

Implications for Crowd Management, Architecture, and Sports

The discovery suggests that current crowd‑evacuation simulations may underestimate natural rotation patterns, potentially affecting the design of public spaces such as museums, supermarkets, train stations, and stadiums. In athletics, the historic shift to anticlockwise running tracks may reflect the same underlying human asymmetry.

Future Research Directions and Potential Applications

Further work will explore virtual‑reality scenarios, simulated injuries (e.g., pretending a leg is broken), and possible biomechanical or neurological origins. Understanding the bias could improve safety protocols, inform architectural layout, and inspire new studies on lateral preferences in other species, such as the left‑turn bias observed in rock ants.