People who continue using drugs experience brain changes that make it harder for reward circuit cells to react. This results in a person feeling less high than they did before they tried the drug. This is called tolerance. You might also try to get the same high with more drug. These brain changes can make it difficult for people to enjoy the same pleasures as they once did, such as food, sex and social activities.
Signs of dependency include: The urge to consume the substance every day or several times per day. Doing more than you desire and taking the medication for a longer period of time than expected. No matter your financial situation, you should always have the medication with yourself. You may use drugs even if they cause problems at your workplace or make you angry at your family members. Spending more time by yourself. Don't care about your appearance, or take time to look after yourself. Harmful behaviours, including lying and theft. Spending most your time using, procuring, or recovering from the effects. Feeling nauseated when you attempt to quit.
Other chemical systems and brain circuits are also affected by long-term marijuana use. These changes can have a negative impact on learning, judgement, decision-making and stress levels, as well as affect behaviour. Many drug users do not realize these terrible things can happen but continue to use drugs. This is addiction's nature.
Preventing Addiction to Prescription painkillers. Even though patients may take the medication for a longer time, most people who do so are not dependent. Do not be discouraged from using painkillers to relieve your pain. However, if you are a recovering addict or have relatives who have been affected by drugs or alcohol abuse in the past, you could be at higher risk.