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How sleep affects your emotions
TED · health & sleep
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Well,
several
years
ago,
we
conducted
a
brain
imaging
study.
Yozib olish va solishtirish
And
we
took
a
group
of
healthy
adults.
And
we
either
gave
them
a
full
night
of
sleep
or
we
sleep-deprived
them.
And
then
the
next
day,
we
placed
them
inside
an
MRI
scanner,
and
we
looked
at
how
their
emotional
brain
was
reacting.
And
we
focused
on
one
structure
in
particular,
it's
called
the
amygdala.
And
the
amygdala
is
one
of
the
centerpiece
regions
for
the
generation
of
strong
emotional
reactions,
including
negative
emotional
reactions.
Now
when
we
looked
at
those
people
who
had
had
a
full
night
of
sleep,
what
we
saw
was
a
nice,
appropriate
moderate
degree
of
reactivity
from
the
amygdala.
It
wasn't
as
though
there
was
no
response
at
all,
but
it
was
an
appropriate
response.
Yet
in
those
people
who
were
sleep-deprived,
that
deep
emotional
brain
center
was
in
fact,
hyperactive.
Indeed,
the
amygdala
was
almost
60
percent
more
responsive
under
conditions
of
a
lack
of
sleep.
But
why
was
that
the
case?
And
what
we
went
on
to
discover,
is
that
there's
another
brain
region
that's
involved.
This
brain
region
is
called
the
prefrontal
cortex,
and
it
sits
directly
above
your
eyes.
And
you
can
think
of
the
prefrontal
cortex
almost
like
the
CEO
of
your
brain.
It's
very
good
at
making
high-level,
executive,
top-down
control
decisions
and
reactions.
In
fact,
it's
one
of
the
most
evolved
regions
of
our
brain.
And
one
of
the
parts
of
the
brain
that
it
controls
is
this
deep
emotional
center,
the
amygdala.
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Speaking
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Grammatika