Heart rate is the main thing that matters from a health perspective. The 10000 step thing didn't come from any research, it was probably a guesstimate about how

Heart rate is the main thing that matters from a health perspective. The 10000 step thing didn't come from any research, it was probably a guesstimate about how much you should power walk to get your heart rate high enough for a high enough period of time. Personally I've been power walking about 8km a day for a few months, and it's doing wonders. But what's important is the pace and your heart rate (mine peaks at 160, which is okay considering that I'm not running). Oh, and eating well is a must. Personally I don't crave junkfood and shitty soda anymore.