Luxan hyper-rage occurred when a Luxan, such as Ka D'Argo, was overwhelmed by extreme bouts of anger. It happened naturally and took years of training to manage properly, if not overcome. The ailment appeared to be a biological feature unique to male Luxans, and no female Luxans were ever seen or reported to have been exhibiting the symptoms. At one point, D'Argo was initially directing his hyper-rage at John Crichton simply because Crichton was male. ("Thank God It's Friday... Again") It is unknown if Luxan hybrids such as D'Argo's son, Ka Jothee, could experience hyper-rage.