Illegal drugs can damage the brain, heart, and other important organs. Cocaine, for example, can cause a heart attack, even in children or teens. While using drugs, people are also less able to perform well in school, sports, and other activities. It's often harder to think clearly and make good decisions.
It can damage the brain and body, sometimes permanently. It can harm people around you, including friends, family members, children, and unborn babies. Drug use can also cause addiction. Many people don't understand why or how other people become addicted to drugs.
They may mistakenly think that those who use drugs lack moral principles or willpower and that they could stop using drugs simply by choosing to do so. In reality, drug addiction is a complex illness, and quitting smoking generally requires more than good intentions or a strong will. Drugs change the brain in ways that make it difficult to stop smoking, even for those who want to. Fortunately, researchers know more than ever how drugs affect the brain and have found treatments that can help people recover from drug addiction and lead productive lives.