How can I train myself to release adrenaline at will? (READ DETAILS)?

He apparently trained himself that when he hears a certain noise his body knows that he's going to need a rush of adrenaline which was tested by Pavlov's dog where he trained him to salivate when he heard a bell ringing, this is called classical conditioning. If you can somehow think or do something that will make her heart race (which is part of the fight or flight system of the sympathetic nervous system and releases adrenaline) Then you can maybe learn to control it, but I feel it is very unlikely.