5. After A Person Is Dead, His Corpse Groans And Moans
The body of a dead human being makes a lot of sounds after the life inside it ceases to exist. When a doctor attempt resuscitating a patient, they often pump extra air in the lungs which can later get released on sudden pressure. As the air passes through the vocal pipe, moaning sounds are often produced by corpses that tend to scare first-year medical students.