HEALTHY
____________________
In
order
to
keep
our
nervous
and
locomotor
systems
healthy
we
need
to
have
healthy
habits
in
our
daily
life
.
Physical
activity
includes
not
only
playing
sports
,
but
also
other
activities
such
as
walking
the
____________________
,
____________________
or
using
the
stairs
instead
of
the
lift
.
Physical
activity
helps
our
locomotor
system
stay
in
shape
by
developing
____________________
and
strengthening
our
muscles
and
bones
.
Playing
sports
involves
sudden
movements
.
This
can
cause
injuries
to
____________________
,
____________________
,
ligaments
and
tendons
.
In
order
to
prevent
sorts
injuries
,
you
should
always
warm
up
and
do
stretching
exercises
before
and
after
playing
sports
.
As
we
grow
up
,
our
bones
,
grow
.
Bone
growth
requires
mainly
____________________
and
vitamin
D
.
Calcium
and
vitamin
D
are
found
in
____________________
and
____________________
products
;
in
oily
fish
,
such
as
____________________
and
salmon
;
and
also
in
some
green
vegetables
,
such
as
____________________
.
In
order
to
look
after
our
nervous
system
,
we
also
need
to
____________________
.
Lack
of
sleep
can
affect
growth
and
cause
____________________
.
Leisure
time
helps
you
to
relax
.
It
is
also
essential
for
a
healthy
and
____________________
life
.
