If you
smoke,
you've
likely
heard
the
pleas
from
friends
and
family
to quit.
You
probably
know
that
smoking
makes
heart
disease,
stroke,
cancer,
emphysema,
chronic
bronchitis,
and
other
killers
more
likely.
You
might
even
know
that
smoking
is the
No. 1
cause
of preventable
death
in worldwide.