Exogenous

EXOGENOUS: Developed or originating outside of the body.
EXTENTION: Movement at a joint, bringing two parts into or toward a straight line, increasing the angle of the joint. Opposite of flexion.

" The real reason they look like that is they are most-likely using exogenous testosterone injections and/or other anabolic steroids.

An exaggerated prolactin release to an exogenous stimulus of drugs or synthetic hormones has been found in endurance-trained males with low testosterone.

One way to bypass your natural muscle growth limit is to artificially enhance your body chemistry with the use of exogenous testosterone.

Acromegaly - Pathological enlargement of the bones of the hands, feet and face resulting from chronic over activity of the pituitary gland. Only results from disease of the pituitary or exogenous growth hormone usage.

See also: Muscle, Hormone, Exercise, Nutrition, Work