Drug's can affect a persons body in various ways. Some drugs are good for the user's to treat sickness, but drugs that aren't ment to be taken can take a harmfull toll on someones body. Drug's have long term, and short term affefts on someone's body.
If someone takes drugs that they aren't supposed to take they may not be able to control there actions, emotions, etc. Drug's can also affect your brain, and valuble organs. Same with alcohol. If the user keeps using, drinking alcohal the more tolerance they gain using drug's or drinking.
Drugs also affect your body's central nervous system. They affect how you think, feel and behave. Drug use can affect short- and long-term health outcomes. Some of these health outcomes can be serious, and possibly irreversible. Things that may happen when your on drug's/drinking: Accident's in a car, home, etc. Commit violent acts, Not be able to sleep, think, and solve problems. All of these out bad out comes of drinking/ and using drug's. Some long-term out come of using drug's include: Cancer, Addiction, Collapsed veins, etc.
That being said, don't do drugs nor drink alcohol. Doing these things can but a very bad toll on your body which may not be irreversible. That means you'll spend may years with the same problems that you've developed from drinking and taking drugs.
It best if you say no to drinking, and taking drug's. If someone offers you drugs simply say no, and if your being forced say no and say something to an adult. If someone is persuading you don't let the continue.