There is a need to reduce the number of insomnia patients and conduct a continuous study on ways to offer affordable treatment for everyone suffering from insomnia. Evidently, the effects of walking exercise on the quality of sleep should be studied by using a mixed method of quantitative and qualitative research. This would enhance our understanding of the multidimensional effects, including physiological, psychological and lifestyle effects and allow us to make a generalization. Though purists disapprove of mixed methods by arguing that neither approach remains valid, I believe that single usage of either a qualitative or quantitative approach cannot fully explore and answer complex questions. There is no absolute or perfect study. Any theory
