Smoking is the leading preventable cause of early disease and death in the United States. People can significantly reduce their chance of smoking-related disease by giving it up.
Giving up smoking is difficult for many people, but the number of former smokers is increasing all the time. According to the Centers for Disease Control and Prevention (CDC), current smoking in the U.S. has declined from 20.9% in 2005 to 13.7% in 2018. The number of smokers who have quit is also rising.
In this article, we look at the health impact of smoking, including its effects on the brain, heart, lungs, and immune system. We also discuss the benefits of quitting.