Any time a person wants to do more than their natural abilities, it takes a great deal of effort for them to reach their goal. When the end result they seek is to be a participant in an extreme sport, mental focus can often be the only key they need to get there. Their ability to push past the pain and exhaustion will often depend upon their desire, so they are the ones who will be able to do whatever is necessary to make their bodies get through the grueling work needed.
Many athletes have found it difficult to focus due to outside influences, but those who are winners will find a way to shut out the distractions of everyday life. They might get up in the morning with a life full of issues to be solved, but they will find their mind narrowing into focus once they reach their training area.