What causes addiction?
What causes addiction?
Our brains are evolutionarily developed in a way that would support our survival. We constantly
crave food. Eating is important to assure our survival and therefore a reward system in the
brain is activated. An essential neurotransmitter called dopamine is released in the brain and
it leads to pleasurable feelings. The same system gets activated when we consume a substance or
carry out other addictive activities. The reward mechanism motivates us to repeat the activities
despite the harm.
Addiction causes significant changes in the brain and leads to impulsive and compulsive
behaviours. Impulsivity refers to the difficulties of inhibiting behaviours and there is a
tendency to live only in the present moment without the ability of autoregulation and the
capacity to postpone pleasurable activities. In the case of long-term addiction, the impulsivity
turns into compulsivity which means a strong urge to behave in a certain way to reduce anxiety.
The addiction restores the feeling of satisfaction. Despite the changes in the brain it is still
possible to learn how to regulate both impulsivity and compulsivity.
The addiction is preserved by abstinence which causes unpleasant feelings such as stress and
anxiety. The liberation of the negative emotions becomes an important motivation to preserve the
old behaviour. Emotional memory also has an important role because it associates the pleasant
sensations with the addictive substance or behavior and therefore the addictive habits are
formed.