" I ask Nichopoulos to talk about precisely, medically, what caused Presley’s death. “The night he died he was bigger than usual,” he begins. Depending on how long it had been since Presley had managed to empty himself, his girth fluctuated between big and stupendous. He sometimes appeared to be gaining or losing twenty pounds from one performance to the next. “He wanted to get rid of his gut that night. He was pushing and pushing. Holding his breath.” As the constipated do. "

― Mary Roach , Gulp: Adventures on the Alimentary Canal