Working one day less per week improved revenue, retention, and employee health, according to a new study. Adopting a four-day workweek can improve employees' mental health and boost a business's bottom line, according to a new study. On the employer side, the majority of organizations that piloted a four-day workweek noticed improved bottom-line metrics, including increased revenue and dwindling resignations. The survey, released by LiveCareer in January, polled 1,130 Americans about their thoughts on a four-day workweek, working 10-hour days. Nearly 70% of employees supported a four-day week, predicting that it would make them more productive and lead to better work-life balance.