Why do people use drugs? Drugs are used every day by people across the world. People use drugs, because they’re addictive, and to get rid of stress, or to solve their problems. Some drugs aren’t as bad as others, but a drug is a drug. There is reason why it’s named that, because it negatively affects you in some way. Drugs will eventually catch up to you, because they will kill your brain cells. The more someone uses a drug the more that person will keep doing it the worse the effects will get. Drugs are chemicals. They work in the brain by tapping into the brain's communication system and interfering with the way nerve cells normally send, receive, and process information. Drug are not good for you and you should not do them or you could die.