@betpchem wrote: I know someone who has done at least 50,000 steps a day all summer. She is not cheating. She gets up at 4 am to get her steps in. So it is possible. Yes, it's possible. That would require at least 6 hours of continuous walking/jogging. So yes, 3 hours in the morning before work, and 3 hours again in the evening after work, plus whatever she can get during the course of the day. The question is: why would someone want to do this? First, there's the law of diminishing returns: you don't get twice as fit with 50,000 steps compared to "only" 25,000 steps. Actually, 50k+ steps a day over a prolonged period of time most probably puts you at risk of developing some kind of injury. I personally think that if someone has six hours to dedicate to exercising on a daily basis, their time would be better spend by doing several varied activities, as opposed to doing only walking/jogging. Now don't tell me that in addition to her 50k+ steps, she also swims, attends zumba classes and lift weights.
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