The health benefits of quitting smoking begin almost immediately. Within 20 minutes of your last cigarette, your blood pressure and heart rate drop. Within half a day, your blood levels of tobacco toxins are reduced too. In the months to come, your lung function will improve, so you'll have more energy to enjoy life. And at the one-year anniversary, your risk for heart attacks will be slashed in half.
The benefits of quitting continue to accrue over time, as your risk for deadly cancers and other diseases drops with each passing year. Quitting smoking today is an investment in your future, no matter what your age.