mass of the human soul.... quirky sounding title so sorry. I have heard somewhere that human mass reduces by a few grammes or so when they die and some people say that this is the soul leaving. Ok - so I'm pretty sure that is not the case. If you consider the flow of blood around the body - then do you think it is possible that a small but measurable gyroscopic effect would manifest itself (due to the motion of the blood crossed with the earths rotation). Obviously this gyroscopic type cross force would stop when the blood stopped flowing (death) leading to a reduction in 'mass' (well, weight). Wierd thought - any comments?