Extreme sports have become synonymous with the 21st century. The word “extreme” in relation to sport is a sign of the risk that goes with doing these sports. Most of them have their origins in the United States and only to appeared in Western Europe at a later stage. Many originated as an alternative to old, well-known popular disciplines. The global boom started in the 1990s. In 1995 the first Extreme Sports Olympics took place under the name X-games. The key disciplines that are present every year include skateboarding, rollerblading, mountain biking and BMX, climbing, freestyle motocross, as well as snowboarding during the winter edition. Every year new disciplines are added to the list, but the ones mentioned above are the core of these olympics. It is crucial that the word extreme, in relation to the discipline of sport, is spelled with an “x”. This letter has become a kind of a sign. Energy drinks, cosmetics lines, magazine titles, website names, clothing lines, etc. which contain the word extreme in their names are supposed to be directly associated with extreme sports.