From Science Magazine.
Read the paper: https://www.science.org/doi/10.1126/science.adf1936
When you’re trying on a new pair of shoes, you might use your thumb to see how much room you have in front of your big toe. Even though it isn’t the most precise tool, your body is a quick and accessible way to measure the world around you. In June, researchers reported that 186 cultures globally use forms of body-based measurements, and that they continued to be used after standard units were introduced. Watch the video to learn about the advantages of body-based units.