Abstract. Background: Co-morbidities have a high impact on the outcome for head and neck cancer patients. The main problems are cardiovascular diseases. Which type of risk behavior is shown by long-term survivors? Materials and methods: We re-analyzed data of two published studies regarding the following factors: affinity to CAM, alcohol consumption, nicotine consumption (study 1), physical activity (study 2). Study 1 has included 310 ENT tumor patients out of a total of 1,013 participants. Study 2 has included 55/155 head and neck cancers. Results: Head and neck cancer patients show a lower rate of CAM using (42.6% versus 51% in total population). They have reported continued alcohol consumption in 189/310 (61%) patients and nicotine abuse in 85/310 (27%) patients. Study 2 has shown a decreasing percentage of physical active patients, from 64% before cancer diagnosis to 38% after the disease. Only 9% of the interviewed patients were informed about local offers in their own region. Conclusion: Head and neck cancer survivors show a deficit in knowledge and active prevention to especially avoid cardiovascular co-morbidities. Further educational work is necessary to improve patient’s competence.