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Humans walk efficiently even with their heads in the clouds

A man walks past a wall covered in colourful graffiti looking at his mobile phone

Maintaining the most energy-efficient way of walking makes minimal cognitive demands, freeing up the brain to focus on other things, such as text messages. Credit: Julian Castle/Loop Images/UIG/Getty

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Nature 597, 451 (2021)



  1. McAllister, M. J., Blair, R. L., Donelan, J. M. & Selinger, J. C. J. Exp. Biol. 224, jeb242655 (2021).

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