The development of industrialization and technology makes life easier but it has many negative effects on health. The reproductive system, which is sensitive to environmental changes, is the most affected. In recent years, the usage of assisted reproductive techniques led to an increase in the number of couples who consults health institutions for assistance in conception. Factors pertaining to males comprise half of all fertility problems. Therefore, when a couple is subject to assessment regarding fertility, males and females should be evaluated thoroughly and their lifestyle behaviors (smoking, alcohol and substance abuse, exercise, nutrition), occupation (environmental exposure, stress), leisure time activities (cell phone and laptop use, etc.) or healthy lifestyle behaviors (sauna, jacuzzi, Turkish bath, etc.) should be investigated. This study reviews the lifestyle behaviors which can constitute a risk factor for male fertility and related research.