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168
Vitality Supreme
·
Bernarr Macfadden
35
The
curves
in
the
human
spine
are
characteristic,
illustrating
in
another
way
the
modification
of
the
vertebral
column
that
has
been
made
necessary
by
the
erect
position.
The
new-born
baby
has
a
backbone
that
is
almost
straight,
and
in
this
respect
it
bears
a
strong
resemblance
to
that
of
many
of
the
lower
animals.
The
typical
human
curves,
however,
begin
to
take
form
as
soon
as
the
child
learns
to
sit
up,
and
they
become
more
marked
as
he
learns
to
walk
and
run.
These
curves
are
essential
to
maintaining
the
balance
of
the
body
in
the
erect
position.
There
are
really
three
curves
in
the
human
backbone,
the
cervical
curve
being
convex,
the
dorsal
concave,
and
the
lumbar
convex,
when
each
is
regarded
from
the
forward
aspect.
If
we
consider
the
sacrum
and
coccyx,
there
is
really
a
fourth
curve,
this
being
concave,
although
in
animals
generally
the
coccyx
curves
backwards
and
is
extended
to
form
the
tail.
In
some
of
the
lower
animals
the
spine
is
nearly
straight,
while
in
some
cases
it
virtually
forms
a
complete
arch
from
one
end
to
the
other.
These
curves
of
the
spine
are
generally
more
marked
in
the
civilized
white
races
than
among
the
black
and
savage
races,
and
as
a
rule
they
are
more
pronounced
among
women
than
among
men.
For
instance,
in
comparing
the
sexes
we
find
that
in
a
woman
the
lumbar
curve
is
more
marked
and
extends
slightly
higher
than
in
a
man,
and
that
the
broad
sacrum
characteristic
of
the
human
race
is
even
wider,
being
thus
adapted
to
the
broader
hips
and
wider
pelvic
cavity
of
the
child-
bearing
sex.
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