And each time they are introduced to other drugs, they will be more likely to try them. Nicotine is the leading cause of preventable death in America. Alcohol is physically addictive. Marijuana is psychologically addictive. Use of these drugs can harm physical, mental and sexual development.
Cigarettes can harm a young person's physical development.
Teens who smoke cigarettes are 100 times more likely to use marijuana than those who do not smoke. Other dangers associated with using nicotine include these. Reduced blood flow to the brain. Student alcohol use causes learning and behavior problems. The younger people are when they start drinking, the more likely they are to become addicted to alcohol and other substances.