You wont believe this

[Salty]

I'm sure there's a pretty reasonable explanation for this, ie since all the blood has been pushed to your head and that most people don't stand perfectly straight the gravitational force acts like a torque, hence a small horizontal component is taken from the vertical causing the scales to miss calculate. But hell I have no idea, might have to give this a try.

Personally, if ever it's true that it works, I would go with Salty on that one, an unequal repartition of blood falsifying the scale'S result for a handful of minutes at best, I really doubt that someone's losing weight for real with that technique, especially as it is mostly the blood that would cause such decreasing.

I dont know,its strange however you look at it; Usually material thinking goes along with Newtons laws and if thats the case how can you trick a constant downward force into thinking it isnt there?

Or in other words how could shifting your weight of blood cells into your head that is still a dead weight on the top of a pair of scales vary the weight?

A torque could, because thats the rotational force about a pivot (rather than a simple up down vector), a normal person would have a lower center of gravity. But since this blood has been forced to the upper portion of your body, your centre of gravity shifts upwards increasing the effect of the torque.

YB, I wish I had a teacher like that