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

we’ll see in the chapters to come, these
traits—alertness, sensitivity to nuance,
complex emotionality—turn out to be
highly underrated powers.
304/929
Kagan has given us painstakingly documented
evidence that high reactivity is
one biological basis of introversion
(we’ll explore another likely route in
chapter 7), but his findings are powerful
in part because they confirm what
we’ve sensed all along. Some of Kagan’s
studies even venture into the realm of
cultural myth. For example, he believes,
based on his data, that high reactivity
is associated with physical
traits such as blue eyes, allergies, and
hay fever, and that high-reactive men
are more likely than others to have a