Our gross overestimation of the capacity of exercise to burn off extra calories may be one reason people can rapidly become disillusioned with their new gym membership.3101 Consider some foods that are CRAP—that is, calorie-rich and processed, as I explained here. To walk off the calories found in a single pat of butter, we’d have to add an extra seven hundred yards to our stroll that evening. What about a Snickers bar? We’d need to jog a quarter mile for every single bite. If we eat two chicken legs, we’d better get out on our own two legs and run an extra three miles that day just to outrun
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