24 hours after quitting smoking the oxygen levels in your blood return to normal

Also after 24 hours your chance of heart attack is also reduced. After 1 to 9 months circulation, smell, and taste improve. You have better lung function, more energy and fewer colds. After 1 year your risk of heart disease is half that of a smoker.

source: 
Kaiser Permanente
Your rating: None Average: 5 (1 vote)