Today, organizations are facing rising costs caused by increased employee sick - leave. A way to motivate employees to choose a healthier lifestyle is for the employer to offer wellness incentives. However, not too many employees are taking advantage of the incentives. According to the Transtheoretical Model of Health Behavior Change (TTM) , people are at different stages in their behavior change process. By knowing their personal obstacles to change, organizations can use nudge management and wellness incentives to help their employees to choose a healthier lifestyle. In order to get some answers, we conducted qualitative interviews at the Swedish Migration Agency. The result of our research showed seven main obstacles, and in this thesis we have explored dif erent nudges organizations can use to promote health and to lower sick - leave.