And when this antibody is produced, it begins to circulate inside our blood and it binds onto acetylcholine receptors found between the motor neurons of our nervous system and our muscle tissue, skeletal muscle tissue. And by binding onto these acetylcholine receptors it blocks the action potential, our electrical signal from actually moving from the nervous system to our skeletal muscle. And this decreases our ability to actually voluntarily control our contraction of skeletal muscle. And this can lead to many problems because for example, as we know, the process of breathing involves the diaphragm and the diaphragm is in fact a skeletal muscle. So in a person that has myosthenia gravis, if they begin to exercise very vigorously, they will have problems breathing because this autoimmune disease affects the weight of ability that we actually contract our skeletal muscle. Now, although this topic of autoimmunity is heavily researched, we still actually do not quite understand how autoimmunity actually takes place.