Smoking increased Corona Virus.

In September 2020 COVID-19 is increased 80% for smoking together.

In a study of adolescent friendship networks and smoking over time, the researchers found that friends exert influence on their peers to both start and quit smoking, but the influence to start is stronger.

What we found is that social influence matters—it leads nonsmoking friends into smoking and nonsmoking friends can turn smoking friends into nonsmokers," said Steven Haas, an associate professor of sociology and demography at Pennsylvania State University. "However, the impact is asymmetrical—the tendency for adolescents to follow their friends into smoking is stronger.