Sometimes it seems that sport has become the most important sector in the world. It is the object of passions, and therefore full of skills and tricks, but it is also a hobby that fills free time, a therapy that helps with health care and well-being, and a characteristic that helps identify certain cultures. On the one hand, there is a very cold rationality, where many obscure risks occur, such as human trafficking, false promises, false and illegal contracts, the use of illicit substances to obtain high income (in the context of competitive sport), etc. In other words, associating it with leisure already seems like a utopia.

Not least because, despite its rationality and well-defined rules, sport is now considered by many to be a cult. In this world of excessive passions, where it is often difficult to find the balance between what is and isn't right, it is considered justifiable to study the new challenges it faces, which help us to think of sport from an evolutionary perspective, because after all, there is an inseparable component with leisure.