Most leaders assess workload through hours, deadlines, and output, but these measures overlook the mental load employees carry: the ongoing cognitive and emotional effort required to manage tasks, relationships, and coordination at work and at home. When these loads collide, they fragment attention, complicate prioritization, and create persistent exhaustion. The result is reduced focus, slower decision-making, and increased risk of burnout and attrition. Managing mental load is less about reducing work itself than about redesigning how it is structured and distributed, so employees can sustain focus, effectiveness, and engagement. Fortunately, leaders can take steps to mitigate this mental load–by making it visible, establishing clearer boundaries around availability, and reducing unnecessary demands during high-pressure periods. They must also play a role in modeling recovery and realistic expectations. Employees won’t believe they have permission to set boundaries if leaders don’t model them.