What best explains the difference in ability between Kenyan track and field athletes (runners) and the rest of us?

Question

Quizplus · Accepted Answer

Kenyan runners come from a culture where running is highly valued and they begin training at a very young age, often running several miles to and from school every day. This early and consistent training, combined with a focus on endurance running, leads to their exceptional ability in the sport. While genetic factors may also play a role, the emphasis on training and hard work is the most significant factor explaining the difference in ability.

What Best Explains the Difference in Ability Between Kenyan Track