What are the three ways to blood dope in sports?

There are three main blood doping methods:

Red blood cell transfusion: This is the most common method of blood doping. It involves taking blood from a donor and then transfusing it into an athlete. This increases the athlete's red blood cell count, which can improve oxygen delivery to the muscles and enhance athletic performance.

Erythropoietin (EPO) injections: EPO is a hormone that stimulates the production of red blood cells. Athletes who inject EPO can increase their red blood cell count and improve their athletic performance.

Blood volume expansion: This method involves increasing the volume of blood in the body. This can be done by infusing the athlete with saline or other fluids. Blood volume expansion can improve oxygen delivery to the muscles and enhance athletic performance.