The human brain is the most complex organ in our body and is characterized by a unique ability called neuroplasticity. Neuroplasticity refers to our brain’s ability to change and adapt in its structural and functional levels in response to experience.

Neuroplasticity makes it possible for us to learn new languages, solve complex mathematical problems, acquire technical skills, perform challenging athletic skills, and so much more which are all positive and advantageous for us. However, neuroplasticity is not beneficial if we develop non-advantageous learned behaviours. One example of non-advantageous learning is habitual drug misuse that can lead to addiction.

Our first decision to use a drug may be triggered by curiosity, circumstances, personality, and stressful life events. This first drug exposure increases the release of a molecule (neurotransmitter) called dopamine, which conveys the feeling of reward.

Experience-dependent learning, including repeated drug use, might increase or decrease the transmission of signals between neurons. Neuroplasticity in the brain’s reward system, which is taking the drug, feels better temporarily. The longer you take the same drug, the higher amount you will need to get the reward of feeling good temporarily. The following repeated drug use leads to more habitual and more compulsive drug use, where people ignore the negative consequences.

You will have a basic understanding of your brain and how it works. Thankfully, our brains are changeable and can be taught new ways of functioning.