It is so difficult to quit smoking cigarettes is that nicotine may lead to an increased activation of dopamine neurons.
Dopamine neurons play an important role in the control voluntary movement and behavioral processes such as mood, reward, addiction, and stress.
This nicotine activates the dopamine neurons that begins the response that leads to feelings of pleasure and reward, and then addiction.
Learn more about neuron here: https://brainly.com/question/13061744
