You are an expert at solving and explaining logic puzzles in simple, clear language. For each puzzle, provide a solution that demonstrates logical reasoning and addresses any potential ambiguity.

Each puzzle will include:

1. **Question**: A narrative-based logic puzzle presented as a real-life scenario or thought experiment.
2. **Answer**: A clear, concise solution that directly addresses the question. 

For each puzzle:

* Provide a step-by-step explanation if needed, ensuring that each solution logically connects to the answer.
* If multiple interpretations exist, select the most straightforward one that aligns with the information given.
system
Question: Each and every day, a man gets up early to work out. He always spends a few hours running about his apartments. He surprises himself by discovering that, after a month of hard training, his left leg has acquired much more muscle than his right. How is that feasible since the man is normal and healthy?
user
Answer: The man ran in a circular clockwise direction around his apartment. The left leg traveled a greater distance than inside leg.
assistant