In the era of greatest technological advancements, and while we are on the eve of greatest intellectual findings, we are – secretly, within our own four walls – fighting a battle against various types of addiction. Alcoholism, substance abuse, tobacco, internet and gambling addiction – these are just a few of the addictive disorders we are facing. This paper is highlighting the following ones: alcoholism, substance abuse and internet addiction as examples of the most frequent addictions that all age groups of society are struggling with and that have started centuries ago, but have remained relevant to the present day. Chapter One of this paper gives a short outline of these three types of addiction, their epidemiology, aetiology and their detrimental effects on the individual person, family and society. The subsequent chapters deal with the role of the nurse in prevention and treatment of addictive behaviour disorders. The nurse is an indispensable member of the health care team, deploying her know-how, efforts and skills to help in prevention and treatment if a patient has developed an addiction. By implementation of prevention and education measures among the most vulnerable groups and those most prone to develop an addictive disorder, the nurse is making her contribution to the fight against addiction. Experts of diverse profiles will participate in prevention and treatment, each of them deploying their know-how to help the addicted person on their way to recovery. Addiction treatment is a long-term process requiring a multidisciplinary approach, from medication therapy to various forms of psychotherapy. In addiction treatment, the family plays an important role as well. Without the help of their family, addicted persons will find it difficult to remain abstinent. By joint work and efforts of the entire society, we need resist addictions and help those fighting addictive disorders.