Body weighs equally same even after death. The only thing is a phenomenon known as rigor mortis, that took place. Rigor mortis is nothing but freezing of muscles after death. It makes body stiff. A stiff body has fixed center of gravity and mass whereas a moving body can change its center of mass and gravity. That's why it feels hard to lift a dead body from a fixed axis with respect to fixed center of gravity. Physicians have even claimed that body losses its weight because soul moves out of the body just after death but according to science this can be justified by loss of blood plasma, lymphocytes and other essential gases. (Copied from www.quora.com) Till time human beings are alive, we had no concern with them, even if they are hungry, ill or homeless. Living person is a burden. An ill living entity is worrisome and if the ailing person is close to us he/she become a source of desperation and anxiety for us but when the same person died, everyone become activ...