Two Part Brain
When speaking of addiction, the ‘two part brain’ is often referenced.
One part is the limbic system; the part of our brain responsible for releasing chemicals, such as dopamine, that make us feel good. The limbic systems primary directive is to seek pleasure, avoid pain and to use as little energy as possible in the process.
The second part of the brain is the pre-frontal cortex, which allows us to think rationally, consider the consequences of our actions and contemplate the future. Both parts of the brain are crucial for survival.