What is

Frequently and increasingly engaging in the behavior

Persistent desire or unsuccessful efforts to stop, reduce or control the behavior

Large amount of time spent on planning the behavior, exercising the behavior and recovering from it

Frequently engaging in the behavior when expected to fulfill professional or social obligations

Continuing the behavior despite suffering from persistent or recurrent social, financial, psychological or physical problems that are caused or intensified by the behavior

The need to increase the intensity and frequency of the behavior or the risks taken to achieve the desired effect

Giving up or limiting professional, social or recreational activities to engage in the behavior

Distress, anxiety, restlessness or irritability if unable to engage in the behavior