Neuroweapons attack via the nervous system. They can disrupt the healthy functioning of normal bodily processes, including organ function (heart attack), nerve signals (horrible pain as if a bone is actually broken), metabolic activities (embarrassing digestive distress, diabetes, and other illness), and cause autoimmune disorders (rheumatoid arthritis). In addition, it can be used for psychological torture, by making an individual believe that they are losing their mind.