Originally Posted by
Wondering Beard
As best I understand it, the job of an actor is to continuously (during work) feel and express emotions that aren't their own, after all acting isn't about reasoning out a character's actions but embodying them. It probably creates quite a psychological weight and perhaps even makes it quite difficult to separate what is emotionally real from what is just acting. Success at a job where emotion is central to doing the job (and rewarded with money and publicity) is not an incentive for the use of reason in life outside of work.