Drug abuse is the harmful use of substances or chemicals with psychoactive elements like alcohol, tobacco, and other illegal substances like cocaine, heroin, and methamphetamine. Drug addiction is often inevitable once an individual begins engaging in drug abuse, which affects the systems of the brain that influence the feeling of pleasure. Drug addiction has severe negative impacts on the affected person, with the adverse effects on the person’s health being arguably the worst. The financial burden on the addict is also rampant in the case of drug addiction. However, drug addiction also affects the families of the addicts, their communities, and society. Social and political costs are also negative consequences of addiction. Addiction not only relates to drug abuse but also other behaviors like gambling. Researchers believe that these behaviors have a similar impact on brain systems, like drugs.