Step 1: Importance of good health.
Good health plays a crucial role in enhancing one's work efficiency. A healthy individual is able to perform tasks with greater energy, focus, and motivation. Physical well-being impacts mental sharpness, thus contributing to better work performance.
Step 2: Impact of poor health.
On the contrary, poor health can have a detrimental effect on work. A person suffering from illness or fatigue may find it difficult to concentrate, leading to subpar performance. Poor health affects both physical abilities and cognitive function.
Step 3: Conclusion.
Therefore, maintaining good health is essential for sustained productivity, while poor health can significantly reduce the quality and quantity of work.
Final Answer: \[ \boxed{\text{Good health is essential for effective work performance, as it increases energy, focus, and cognitive abilities, while poor health hampers productivity.}} \]