Prevention of fatigue is provided through

• A. Increased workloads and shorter breaks
• B. Irregular breaks with no plan
• C. Regular meals only
• D. Rational organization of labour, physiological working postures and movements, and exercise and drills, and rational organization of work and rest

Answer: (D)

Fatigue prevention hinges on managing how work is designed and how recovery is built in, plus conditioning the body to handle the demands. A balanced plan that organizes labour and rest ensures workload matches the time available for recovery, while ergonomic work practices—physiological postures and purposeful movements—reduce unnecessary physical strain. Regular exercise and drills improve endurance and overall resilience to daily tasks. When combined, these elements tackle multiple fatigue sources: workload, recovery, posture, and conditioning. Simply increasing meals addresses only energy intake, not the physical load or recovery planning; irregular or unplanned breaks undermine rest; and increasing workload with shorter breaks worsens fatigue.