As Lunesta fulfils a key need for us as humans, it is highly addictive, by reinforcing positive feelings and fulfilling natural requirements. Through its role, where a vulnerability already lies, ongoing exposure can develop the habit of its presence, while also adapting brain activity and response to Lunesta.
Further factors such as genes and environments can motivate addiction susceptibilities. However, the fulfilment of Lunesta effects is the key driver, also the driver of causing long-term damage if enabled.