Weight is a good guideline for blood volume in people of average build. This is why we set a minimum weight limit of 7st 12lbs (50 kg) because if more than 13% of blood volume is taken there is more risk of the donor feeling faint after donating.
Not surprisingly, the one factlet most often offered up as revealed truth is wholly false: Your hair and nails do not continue to grow after you die; it's all optical illusion. The sorry fact of the matter is that we dehydrate after dying. Our flesh dries and, in so doing, pulls away from nails and hair.
People have reported a growth in hair and nails after death, but it has been disproven. It may appear to do so as the body dehydrates and the skin, including gums, shrinks as it dries up. Pied_Pfeffer (24050) âGreat Answerâ (2) Flag asâ¦ Â¶. Well.. Iâm not a doctor, but I work in hospice which includes postmortem care.