Within 24 hours
Carbon monoxide level in your blood returns to normal
Heart rate slow and skin temperature increases
Chance of heart attack decreases
Within two to five days
Detectable levels of nicotine disappear
Respiratory symptoms (colds, coughing, etc.) gradually disappear
2 to 9 Months after quitting
Headaches and stomachaches caused by smoking disappear
Your body is better able to fight infection
Energy increases
Cilia in your lungs begin to come to life and attempt to clear the accumulated mucus out of your air passages
After you first year smoke-free
Heart returns to nearly normal conditions
Experience a 90% drop in risk of heart disease
10 years after quitting
Risk of dying from lung cancer similar to that of nonsmokers
15 years after quitting
Risk of coronary heart disease is that of a nonsmoker
