In accordance with a workforce of medical professionals (by way of a 2007 research article printed within the BMJ), the quick reply is that no, human hair doesn’t proceed to develop after one’s loss of life.
The expansion of 1’s hair and nails requires a hormonal regulation sequence that doesn’t, and can’t, happen after loss of life. Beneath hair follicles lies a cluster of cells referred to as the hair matrix. These cells obtain vitality from the burning of glucose, after which use that vitality to stimulate the hair follicles and finally create hair progress. Glucose burning, nevertheless, is contingent upon the physique’s receipt of oxygen, which, in fact, can not happen whereas deceased (by way of StatPearls).
Human fingernails are fairly comparable, on this context. Cell manufacturing beneath the nail beds promotes fingernail progress, and the method of this cell manufacturing is contingent upon glucose. With out glucose, which, once more, can’t be provided throughout loss of life, the fingernails can not develop.