“Often, introverts describe how they interact with the outside world as a performance, and acting is work. Similar to professional actors, introverts may appear enthusiastic, lively and entertaining. However, many describe the experience as being ‘on stage’ – for an introvert to spend a significant amount of their day using non-preferred characteristics requires a great deal of energy.”
Wow. I couldn’t have said it better myself, and I am, in fact, one of those introverts.
Eva Rykrsmith wrote a great piece on how introverts can be more effective at work. For some other thoughts on how introverts can manage the stress of a role that requires extroverted behaviors, have a look at my post on Intuit's Quickbase blog.