The target of 10,000 steps a day originated from a successful Japanese marketing campaign in the mid-1960s by a company called Yamasa. The campaign capitalized on the popularity of the Tokyo Olympics by introducing the world’s first step counter called a manop-kei, translating to “10,000 step meter.” This target has since been widely adopted as a daily goal for physical activity, even though there was no scientific evidence supporting this number at the time.
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