Depressants like fentanyl can involuntarily relax the diaphragm in larger amounts, and though heavy-set persons like Floyd can safely ingest more, if they do ingest much, they are prone to obstruction of their breathing when the weight of their fatty tissue prevents the motion of other compensating breathing muscles. | Depressants like fentanyl can involuntarily relax the diaphragm in larger amounts, and though heavy-set persons like Floyd can safely ingest more, if they do ingest much, they are prone to obstruction of their breathing when the weight of their fatty tissue prevents the motion of other compensating breathing muscles. |