A hidden hazard: how operational decisions shape fatigue at sea

Fatigue is one of the biggest hidden risks at sea, yet it is often misunderstood as an individual failing rather than a systemic issue. Ronald Spithout, of OneHealth by VIKAND, explains how operational pressures, disrupted sleep and misaligned schedules combine to compromise safety, well-being and performance aboard vessels

Fatigue at sea is often an invisible risk, creeping up on crew members for days and weeks, rather than striking suddenly. It is shaped by decisions made long before a seafarer steps on deck, such as how watch schedules are arranged, staffing levels determined, workloads distributed and rest opportunities planned. Together, these factors dictate whether a crew member begins a shift alert and capable or depleted and vulnerable. Understanding these underlying causes is essential to improving safety and safeguarding crew well-being.