The gadget, worn at the waist, counts every step of the wearer. As it turns out, that’s a surprisingly effective way to persuade people to move more.
In a review of more than two dozen studies, researchers at Stanford University found that people who used pedometers to monitor their daily activity walked about 2,000 more steps every day, or about one extra mile, compared to those who weren’t counting steps.
People who used pedometers also showed statistically meaningful drops in body mass index and blood pressure.
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Note: I love my pedometer! I've worn it for almost 4 months. I even wear it in bed so I don't miss any steps till I remember to put it on in the morning. It does make me walk more. I even 'march' while I'm brushing my teeth to burn calories and build muscle. It's fun to record the steps each night before bed. Not every personality type is motivated for self-achievement, but it sure works for me.