Apart from the simple fact that introverts prefer to have plenty of time to themselves, and that being denied this can be draining, there’s also evidence that, at a physiological level, introverts respond more strongly to stimulation, such as loud noises, than extroverts do. This means socialising is more likely to leave them exhausted and needing a rest afterwards. On the Introvert, Dear blog, contributor Shawna Courter even argues that there’s such a thing as an “introvert hangover”, which she describes as “an actual physical reaction to [social] overstimulation. Your ears might ring, your eyes start to blur, and you feel like you’re going to hyperventilate”.
