Lung Cancer Risk Factors Does Smoking Cause Cancer
The Centers for Disease Control and Prevention (CDC) estimated that in 2019 approximately 34.1 million American adults were regular cigarette smokers, and more than 16 million were living with a smoking-related disease. Researchers defined a “current smoker” as someone who reported smoking at least 100 cigarettes in their lifetime or who reported smoking some days or every day. Fortunately, the prevalence of smokers has gone down in recent years. In 2005, about 20....