When you're C.E.O., you have to have two conditions: first, shareholders need to trust you and want you to head your company. The second is that you need to feel the motivation to do the job. So, as long as both are reunited, you continue to do the job. And today, they are reunited.
Of the primary emotions, fear is the one that bears most directly on survival. Children show fear. Adults try not to, maybe because it's shameful, or, in some circumstances, dangerous. The fear response is automatic, though, and your body runs through its reflexes whether you want it to or not.