The science behind addiction is complicated, and for this reason, not many people understand it. There is a need to know that addiction is not for the immoral or those persons who lack the will power. Addiction is a complex brain disease that can get any person regardless of their background or age. One thing that you need to know is that not all people who use drugs suffer addiction as drugs have different effects on people. When some people occasionally use drugs, they end up losing control over time, and this changes the way their brain, body, and mind works. With these changes, the person gets into problems like physical health, family problems, missing work, and many others. Learn how drug addiction is a family disease on this page. The other thing that you need to know is that drug addiction is not only for illegal drugs as it can also be for legal drugs or prescription medication that is used in an unhealthy way. Some of the legal drugs that people get used to including alcohol, cigarettes, vaping, and nicotine. There is also addiction as a result of misusing prescription medicine, such as opioids or OTC medicines. This is brought about when a person takes a more massive dose than the prescribed. Another case when a person takes medicine that is intended for another person. On the illegal drugs, it could be heroin, marijuana, cocaine, and the inhalants. Identifying when a person has substance use disorder is not very easy, especially when they fear stigma or shame. It is for this reason that you will find that a lot of people keep their use of drugs a secret. When you are in doubt that someone you know could be having this problem, there some indications that you need to look at. For instance, these people have intense cravings for drugs several times during the day. The other indication is that these people usually have drugs with them. You also need to know that such a person will do anything to get drugs, including stilling and lying. Read more on drug addiction symptoms here. The use of drugs can lead to change in behaviors or make a person act in a way that they do not when they are sobber. You need to know that these behaviors infrequently start therefore hard to notice. However, over time they start to occur more frequently as a result of using drugs. For instance, you realize that people start to change their friends; they also tend to spend more time alone. These people also usually have mood swings, sleep longer or less than usual, and not taking care of their appearances. Drug addiction is a chronic disease that needs to be addressed before it escalates. In that case, there is the need to ensure that you look for professional help if you or your loved one is in such a problem. Click here for more details: https://www.britannica.com/science/alcoholism/Treatment-of-alcoholism.