While professionals may feel in control of many aspects of their lives, their calendar isn’t often one of them. Work-life balance is the holy grail of maintaining a professional career. In 2014, Gallup found the average American workweek was 47 hours, with nearly four in 10 Americans working more than 50 hours per week. Bloomberg spotlighted automobile factories where 12-hour shifts were the norm, and Silicon Valley is notorious for its long hours.