Te purpose of gene therapy is to use the foundations of genetic engineering for therapeutic use through the correction or manipulation of defective genes, and is fundamental for the treatment of many degenerative. Te frst genetic therapy tests were conducted with proteins closely related to doping (e.g. erythropoietin and growth hormone). Terefore, genetic doping exploits the same concept of gene therapy but not for therapeutic purposes, but to improve the performance of athletes by modifying some genes that lead to increase endurance and muscle mass. Tis method is certainly not devoid of adverse, and sometimes fatal, efects that each of these techniques has on the athlete. Te use of the athlete’s biological-molecular passport represents...