relaxed-employee-happy.pngWorkers who are logging in extra hours may look like they’re committed to your company — but that enthusiasm might not last long.

Employee burnout currently poses the biggest threat to engagement, according to a new study involving chief human resource officers, HR vice presidents, HR directors and HR managers.

Ninety-five percent of HR leaders say burnout is damaging retention at their organization; nearly half (46 percent) say it’s responsible for up to half of their annual employee turnover.

Employee burnout is most often caused, survey respondents said, by unfair compensation, an unreasonable workload and too much overtime or after-hours work being required.

Thirty percent of HR leaders said poor management played a part; 29 percent cited a lack of a clear connection of employees’ role to the corporate strategy. Twenty-six percent felt a negative workplace culture had contributed to employee burnout.

Find out more burnout factors from Kronos Incorporated and Future Workplace’s research.