Maybe he plans on catching Corpus Disease, then use his special cough syrup to live FOREVER!!!
TBH he's doing pretty well in that regard without catching Corprus. He's one of the few mortals alive that were around during the Battle of Red Mountain, wherein the Dwemer disappeared. In fact, he may be the only one, considering that the Tribunal aren't mortal, Dagoth Ur is dead and also wasn't mortal, and Yagrum Bagarn wasn't technically around for that battle, though he was born before it happened, and could also be considered to not technically be mortal due to Corprus. There may be others that I'm unaware of that are old enough to have been there, however.