Aim: To investigate exercise behaviour, smoking addiction and general health status of nursing and midwifery students. Material and Method: 211 students between 17-25 years old (mean 20.01±1.30 years) were included. After recording demographic data, exercise behaviours were assessed by the Behavioural Regulations Scale for Exercise-2; addictive behaviours by the Fagerstrom Nicotine Dependence Scale; and general health status by the General Health Questionnaire-12. Results: General health score of the students was 2.64±2.66 the internal regulation subscale of the Behavioural Regulations Scale for Exercise was 17.68±5.50 the introjected regulation subscale was 3.80±3.57 the amotivational subscale was 1.08±1.96 and the external regulation subscale was 1.27±1.95 points. 8.1% of the students were smokers and received 0.26±0.99 points from the Fagerström Nicotine Dependence Test. There was a negative relationship between age and amotivation subscale of Behavioural Regulations Scale for Exercise-2 (r:-0.197, p:0.004). It was seen that the motivation behaviour increased with age. A positive correlation was found between body mass index and external regulation subscale of Behavioural Regulations Scale for Exercise-2 (r:0.215, p:0.002). Also the need for external regulation increased as the body mass index increased. No significant relationship existed between general health status and exercise behaviour; and smoking dependence (p>0.05). Conclusion: It seems that the majority of the students managed their exercise behaviours with a great deal of motivation, and were not addicted to smoking and the general health conditions were predominantly moderate-good. Age and body mass index were found to influence exercise behaviour. Improving awareness in the early years before students take ages is essential. However, it has been thought that exercising with external appearance focus may lead to erroneous results in individuals with high body mass index. So an accurate evaluation and personalized exercise programs are important.