Hair goes on growing after a person dies because the cells of the body go on working until they have exhausted their fuel supply.
The hair follicle is composed of two layers – an outer layer of cells forming the outer root sheath and an inner layer of horny, bigrous oblong cells. The hair grows upwards from the bottom of the follicle by multiplication of the soft cells, which becomes elongated and pigmented to form the fiber-like substance of the hair shaft.
The soft cells at the base of the follicle need the nourishment brought to them and all the other cells of the body by the bloodstream.
A person’s fingernails, just like the hair, keeps on growing even after a person’s death. What could account for this occurrence?