nicotine
addict
addiction
awareness
background
bad
breath
broken
bronchi
cancer
care
cigarette
concept
damage
dangerous
disease
drug
forbidden
habit
health
human
illness
isolated
lung
lungs
medical
medicine
nobody
object
organ
pneumonia
problem
respiratory
risk
scattered
sickness
smoke
smoker
smoking
stop
tobacco
toxic
treatment
unhealthy
warning
white