Consistency of conditions is really what's key in the whole scale thing ... weigh the same time of the day, same clothing (naked is best, so you're weighing yourself, not your wardrobe), and importantly, don't move the scale. If you do get on and off it a couple times and make sure that it's re-zeroed before you record a result.
Make sure your feet are flat on the scale, no bouncing about or balancing or touching the wall to change the results.
My own personal preference is to weigh after the morning dump.
Every ounce counts, you know?
|