Lou Gehrig's Disease

 or ALS is a genetic disease that cause failure of neural functions. Person, suffering from it, slowly loses control of his body and eventually dies. It's primary symptom is tremor.

As archives in Novus fallout bunker revealed, Tamara Johansen has this disease, as her alternate counterpart died of it. Yaozu claimed that People of Novus found a cure for it, but this knowledge was lost after destruction of Novus. Destiny expedition started searching Destiny database for cure, but have yet to find it. Modern Tau'ri medicine has no cure for it.