Smoking
and
Health
Smoking
is
a
major
cause
of
preventable
illness
and
death
.
It
causes
various
types
of
____________________
,
including
lung
,
throat
,
and
mouth
cancer
.
It
also
increases
the
risk
of
____________________
,
____________________
,
and
____________________
.
Smoking
damages
the
lungs
and
reduces
____________________
,
leading
to
chronic
obstructive
pulmonary
disease
(
____________________
)
.
It
can
also
worsen
____________________
symptoms
and
increase
the
risk
of
respiratory
infections
.
In
addition
,
____________________
during
____________________
can
harm
the
developing
____________________
and
increase
the
risk
of
____________________
and
____________________
.
Secondhand
smoke
is
also
harmful
,
causing
lung
cancer
and
other
____________________
problems
in
nonsmokers
.
Quitting
smoking
is
the
best
way
to
improve
health
and
reduce
the
risk
of
these
serious
diseases
.