It is not common for everyone to become addicted to drugs. This can happen at any age and to anyone. There are some things that can increase your chances of developing addiction. These include family history. About half your chances of addiction are attributable to your genes. Your chances of getting addicted to alcohol or drugs are greater if your siblings or parents have had problems. Both women and men are equally at risk of becoming addicted. Early drug use. Drug use can affect the brain development of children. Addiction can be made more likely if drugs are taken early. Mental disorders. There is a greater chance that you will become addicted to drugs if your mood is depressing, your attention span is poor, or you worry constantly. To feel better you might resort to drugs. A history of trauma can make you more susceptible to addiction. Troubled relationships. Your chances of getting addicted may rise if you were raised with family problems and are not close to siblings or parents.
Signs of Addiction You take more drugs than what you desire and for longer durations than you anticipated. Always have the drug with your, and even if you cannot afford it. Use drugs, even if it causes problems at work or causes you to lash out at your family and friends. Spending more time with your partner. Not taking care or looking after yourself. Stealing and lying, as well as doing dangerous things like driving while high or engaging with unsanitary sex. You spend most of your time getting, using or recovering from the effects. You may feel sick if you try to quit.
                
 
Brain alterations that occur over time due to chronic drug use pose a problem for a person addicted to drugs. It can also make it harder to maintain self-control and hinder their ability to resist their strong cravings. It is also known as drug addiction, which can lead to relapses.
 
Heroin, cocaine, and other illicit drugs are not the only substances that might contribute to drug addiction. There are a variety of legal drugs that can lead to addiction, including alcohol, nicotine, sleep and anxiety medicines, and others. 
                                            
                                             
Your brain will adjust to the fact that you continue to use drugs. This is because the reward circuit cells are less able to respond to the drug. This will continue even if the individual continues to abuse drugs. The effects of a drug can diminish over time. You may be able get the same effect if you take a higher dose of the chemical. These changes in brain function can lead to the person being unable to engage in sexual activities or eat.
Long-term drug use can affect cognitive and behavioral functions such as learning, judgements, decision-making and stress management. People who use drugs, despite knowing the potential negative consequences, continue to use them despite being conscious of their addiction.
Why do some people develop a tolerance for drugs and others don't? It is impossible to predict the outcome of a drug addiction. There are many factors that influence the likelihood of someone becoming addicted. Predispositional factors that increase the risk of a person becoming addicted to drugs can lead to a higher likelihood of a person getting addicted after they have used them. 
  
Addiction is a chronic disorder that involves excessive drug seeking and abuse, regardless of its negative effects on one's physical health. It can be difficult to stop an addict. Although most people will take drugs out of a desire to do so, it can be difficult to control addiction. Chronic drug abuse can lead to brain changes that make it more difficult to exercise self-control. This can also hinder an individual's ability to resist the urge to use drugs. Because these brain changes can last a long time, drug addiction is known as a "relapsing disorder". People who have recovered from drug addiction are more likely to relapse, even after having stopped using drugs for a while.
                                             
In addition, physical dependency and tolerance are not the same thing as addiction. If you suddenly quit using a drug after developing a physical dependent on it, you may experience withdrawal symptoms. A state of tolerance develops when a given dose of a drug loses some of its efficacy over time.
For instance, if you use opioids to treat pain on a regular basis, you run the risk of developing a tolerance to them and perhaps becoming physically dependent on them. This does not imply that you have a dependency problem. In most cases, only a tiny fraction of people will develop an addiction to opioids even when they are administered appropriately and under the supervision of a physician.
Impact on Your Mental State: Your brain is hardwired to make you desire to seek out similar situations that result in a positive emotional state. In order to encourage you to carry out these actions once more and again. 
However, not all who experiment with drugs become dependent. It is possible for it in anyone at any age. A number of factors are associated with a higher risk of addiction. These include the past and family history. Your genes account for half of the factors that influence your chance of becoming addicted. You are more likely to develop an addiction if any of your family members or parents have suffered from substance abuse. Both women and men have the same chance of developing addiction. Initial exposure to drugs. The brains of young children are still developing. Drugs can disrupt this process. It is possible to develop a dependency on drugs as you get older, if you start using drugs in a young age. Mental disorders. People are more likely to get addicted to a substance when they are unhappy, have trouble paying attention, or worry constantly. It is possible to self-medicate using medicines in the hope it would make you feel better. An addiction is more likely if there are traumatic events in your past. Relationships that are difficult. If you have had a difficult childhood and are not in a good relationship with your siblings or parents, your likelihood of developing addiction is increased.