Martial arts and gymnastics help. Believe me I know. Martial arts because it helps with hand-eye coordination, and gymnastics because it helps with flexibility. But another one I forgot to mention is ballet! It has both of the things in martial arts and gymnastics. Hopefully this helps!
It will also decreased red blood cell development. why? Red blood cells contain a pigmented protein called hemoglobin. Its the hemoglobin (globulin is the protein part) synthesis that will be decreased
