The principal clinical signs of death are apnea and asystole. Other indications, including loss of cranial nerve reflexes and the cessation of the electrical activity of the brain, may be necessary for those receiving mechanical life support.
It usually takes from 24 to 72 hours for healthy people to completely digest food and eliminate waste products. The first stop for food is the esophagus, which moves food from the back of the throat to the stomach. About six to eight hours after eating, food passes through the stomach and small intestine.
It actually depends on the type of food eaten. Most food you eat is completely digested, mouth to anus. in 12 to 48 hours. Some, and this is contingent upon your metabolism, c â¦ an take as long as 72 hours. 7 people found this useful.ost food you eat is completely digested, mouth to anus. in 12 to 48 hours. Some, and this is contingent upon your metabolism, c â¦ an take as long as 72 hours. 7 people found this useful.