Chapter 6. Dopamine, the dark side of addictions.

Dopamine is a neurotransmitter, a hormone-like chemical produced in the brain. And it transmits communications and messages through connections in neural fibers that are in the nervous system. Dopamine is also called the happiness and pleasure hormone because a high level of it causes us a sense of happiness, confidence and self-esteem.
But dopamine has also a dark side in its connection to addictions.