I don't know if it's mad coincidence or if I just have a very strange circumstance, but when I've done a cardio exercise session and weigh myself after, I weigh up to a pound and a half less than the morning before I'd done it. Is this even possible?!
after a run (about 15minutes) i lose about a pound but then i gain it back plus some for unknown reasons. i was told by my trainer not to weigh myself after a workout because its wont be completely accurate.