" We know what it feels like to have our energy drained by too much interaction. It feels like my brain is tired, almost like a muscle would be tired. The more depleted my psychic energy is, the slower my thoughts come, the harder it is to speak full sentences or focus on what’s going on around me. My senses become even more sensitive; noise and fuss are more overwhelming. And I become tense, irritated, cranky. That’s when I know I need to stop, sit down, let my brain relax and put up its metaphorical feet. "

― Sophia Dembling , The Introvert's Way: Living a Quiet Life in a Noisy World