Context: Prior to this , he 'd never had so much as a cold . He ran three miles each day and ate like a horse . He was a rancher all his life and , in his retirement years , kept a garden and did a lot of wood - working . I have piles of cool , wooden toys he made for my kids when they were little .

Question: Why did the man have such good cardio ?
Options:
0. None of the above choices .
1. He biked every day .
2. He did a lot of long - distance running .
3. He ran two miles every day .
Answer: 2