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

in the evening than others when
they’ve had stressful days, but less anxiety
on calm days. High-reactive fouryear-olds
give more pro-social responses
than other children when
presented with moral dilemmas—but
this difference remains at age five only
if their mothers used gentle, not harsh,
discipline. High-reactive children raised
in supportive environments are even
more resistant than other kids to the
common cold and other respiratory illnesses,
but get sick more easily if
they’re raised in stressful conditions.
The short allele of the SERT gene is also
associated with higher performance on
a wide range of cognitive tasks.
These findings are so dramatic that
it’s remarkable no one arrived at them
until recently. Remarkable, but perhaps
not surprising. Psychologists are trained
to heal, so their research naturally
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