Unfortunately, humans are terrible at these two basics. e.g. "it's just a cookie i'm having for a snack, that doesn't count, does it?" or "i walk up three flig

Unfortunately, humans are terrible at these two basics. e.g. "it's just a cookie i'm having for a snack, that doesn't count, does it?" or "i walk up three flights of stairs to work every day, that's the same as 30 minutes of exercise a day, right?"