quiet-the-power-of-introverts-in-a-world-that-cant-stop-talking-susan-cain

understimulating, neither boring nor
anxiety-making. You can organize your
life in terms of what personality psychologists
call “optimal levels of arousal”
and what I call “sweet spots,” and
by doing so feel more energetic and
alive than before.
Your sweet spot is the place where
you’re optimally stimulated. You probably
seek it out already without being
aware that you’re doing so. Imagine
that you’re lying contentedly in a hammock
reading a great novel. This is a
sweet spot. But after half an hour you
realize that you’ve read the same sentence
five times; now you’re understimulated.
So you call a friend and go out
for brunch—in other words, you ratchet
up your stimulation level—and as you
laugh and gossip over blueberry pancakes,
you’re back, thank goodness, inside
your sweet spot. But this agreeable
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