The effects of long-term drug use can also cause changes in other brain chemical processes or circuits. They may impair your ability and judgement to make good decisions, memory, learning, and ability. These brain alterations may make it more difficult to resist the urge to use drugs in ways not within your control.
Who is most likely develop an addiction? Each person's brain is unique. Different people may have different drug reactions. Some people find the sensation overwhelming and desire more. Others dislike it, and won't return to it.
People who use drugs to experiment may not develop a dependence on them. But it is possible for it at any age. You are more likely to become addicted if you have a family history. Your genes make up almost half the factors that will determine your chance of success. It is more likely that your parents, or siblings, have struggled with substance abuse. Both men and ladies have the potential to develop addiction. Initial exposure to drug use. Children's brains are still developing. The use of drugs may alter this process. The risk of developing a drug addiction may rise if you use drugs from a young age. Mental disorders. Addiction to a substance is more likely if someone is depressed, anxious, has trouble paying attention or is worried. You might try self-medicating with medications in the hope that you will feel better. It is also more likely that you will become addicted if your life has been impacted by trauma. People who have difficult relationships. If you were raised in a family that was troubled or have not had strong relationships with your siblings and parents, it's possible your propensity to addiction will increase.
                
 
Extended drug use may cause the brain to alter its chemical processes and circuits. They may affect your reasoning, decision-making abilities, memory, and ability learn new skills. This combination of brain changes can make it hard to resist the urge to use drugs in ways you cannot control.
 
An inability to stop is a hallmark of addiction. No, not when it puts your health in danger. It is not okay to cause financial, emotional and other problems for yourself or those you love. Even if you want to quit using drugs, it is possible to find that you need them every day.
Physical dependency and tolerance do not necessarily mean addiction. You may feel withdrawal symptoms if you abruptly stop using a drug, after becoming physically dependent. When a given drug's efficacy is reduced over time, it can lead to a state of tolerance.
You could develop a tolerance to opioids and become physically dependent if you continue to use them for pain relief. However, this does not mean that you have a dependency problem. Even if opioids are prescribed correctly and monitored by a doctor, only a small percentage of people will become addicted to them. 
                                            
                                             
An addiction to drugs can make it difficult for a person to keep their mind in check and resist the temptations of drug cravings. The result is substance addiction, which can lead to relapses. 
  
Drug addiction impairs a person's ability to exercise self-control and interferes with their capacity to withstand strong desires to consume drugs due to the gradual brain alterations brought on by drug usage. Because of this, drug addiction is a chronic, recurring condition.
Relapse is the act of using drugs again after making an effort to stop. Relapse shows a need for further or alternative therapy.
                                             
Dopamine is the chemical messenger that stimulates the reward circuit in our brains. Dopamine reward circuit stimulations encourage harmful but enjoyable behaviours and encourage people to continue the action.
Tolerance results from the brain's gradual adaptation towards the additional dopamine. This reduces the amount of high that the user experienced before they started taking the medication. You could use more medication to get the same dopamine high.
One element does not determine the likelihood that someone will develop a drug dependence. A combination of environmental, genetic, and developmental factors can influence the risk for addiction. As an individual's risk factors increase, the probability of developing addiction to drugs rises. 
Why do some people get addicted to drugs and not others? It is impossible to predict the likelihood of someone becoming addicted to drugs. A variety of factors can influence your risk for addiction. The risk of an addict using drugs leads to increased addiction.
Biology. The inherited DNA of half the population is responsible for determining a person's likelihood of addiction. The genetic factors that influence the risk of drug addiction and use may also impact gender, ethnicity, or other mental conditions.
Environment. The environment in which a person lives can have a number of impacts, from the influence of family and friends to financial stability to their overall quality of living. There are many factors that can impact the likelihood of someone taking drugs or becoming addicted, such as peer pressure and early exposure to drugs.