Question

Soon you will watch a video about an athlete whose improved performance has led some to suspect him of blood

Answer 1

Answer:

well it could effect that bc blood dipping

Answer 2

Answer:Blood doping works through a process of increasing the number of red-blood cells in the body. These red-blood cells carry oxygen to the skeletal muscle which improves the individual's performance by increasing the individual's aerobic capacity and endurance.

Explanation:

Hope this helps