Steroids act by stimulating the body's muscle cells to manufacture more protein which, as long as the athletes work out and he does exercise, drives to increased muscle size and strength also boost up and, at the equal time, also enables the body to create more ATP, the "fuel" that is the muscles that require to move an work out.
To get a better look at the fetus- They can do a more in depth examination and see if the child has any malformations or if sex wasn't determined before the sex of the fetus.
