a.) Cocaine
According to research, individuals who smoke cigarettes are reported to be 22 times more likely to use cocaine. This association can be attributed to various factors. One explanation is the concept of gateway drugs, suggesting that the use of one substance, such as nicotine in cigarettes, may increase the likelihood of experimenting with other substances like cocaine. Additionally, common risk factors, social environments, and underlying psychological tendencies may contribute to the observed correlation between smoking and cocaine use. It's important to note that correlation does not imply causation, and individual circumstances may vary.
