There is an undeniable sense of accomplishment when your FitBit or iPhone step tracker hits 10,000. Because: You did it! You’ve reached your activity goal, and can file the day away as a successfully active one. Except there’s one problem: That whole “10,000 steps” answer to the question of how many steps to take in a day is actually kind of a scam.
Yup—you read that right. The number was developed in the 1960s by a Japanese walking club while they were producing a step-counting device with a name that roughly translated to “10,000 steps meter.” They marketed the tool using the slogan: “Let’s walk 10,000 steps a day,” and clearly—if our collective FitBit obsession is any indiction—that number stuck.