Some days your balls shrink

I dont know about you but stimulants and cold cause mine to shrink. Is this a serious question? Also I dont think it is the actual shrinking of the testicals just a theory but I believe it is probably shrinking of the scrotum sack!!!

Is this a serious question? If so here we go.My balls shrink when they are cold or I have stimulants coffee etc. But this is just a theory I believe it is the nut sack that actually shrinks and not the balls themselves. Is this a female asking this question?