Trying to control adrenalin and make it come to you is unnatural, and if there's one thing in life that you should learn it is this: DON'T F#CK WITH NATURE. Proper relaxation (as taught by Koichi Tohei, ki-aikido) is a lot stronger than excess adrenalin, and if you can achieve this then the natural amount of adrenalin appropriate to the situation will come to you. Having more adrenalin than needed is a very, very dangerous thing. Oriental philosophy has it that extreme yang leads to extreme yin. Having a lot of adrenalin will afterwards leave you feeling tired and depressed, and this is especially bad when you have much more adrenalin than needed, and a lot goes unused. People who have been the passive recipient of violence or threatened violence have been known to experience depression for years after the events. And trust me, I know. I have experienced the effects of excess adrenalin myself and I now feel really sorry for people who have also experienced it. Please don't become one of those people.
Respect nature, man
and peace a little
.