As Theodore Roosevelt was growing up, he was living in New York City, but he Suffered from poor health. Theodore Roosevelt's dad loved spending time with his children. Theodore Roosevelt improved when doing exercises, like taking hikes with his father in Europe.
As Theodore Roosevelt was a child he was mostly indoors because of his poor health, since he had asthma. His family often called him "Teddie" and that name had stuck with him to his late teens. Since he had early physical limitations, he started gymnastics and weightlifting.