The Muscular System consists of individual skeletal muscles. (Muscles are attached to the bones by tendons.)
The predominant function and responsibility of the muscles is contractibility and movement. (They also help us maintain body posture and a constant core body temperature).
Internal movement involves the contraction and relaxation of muscles while external movement is accomplished by the contraction and relaxation of muscles which are attached to bone.
Red stones in general, are stimulating, activating and energizing. Red Jasper, an earth element, is activating to the physical body, supporting it with the strength and energy of Mother Earth. This energy helps your muscles to grow strong and stable.
You can purchase Red Jasper here.