When you come down to it, medical conditions and illnesses in a superhero universe must be interesting to consider. Here we have the view on a character, reliant on a potion to extend his life, but clearly time and biology are catching up with him. Not to mention the whole what do superheroes do for medical care.

Like, in DC, does Wayne Medical have a special program for providing confidential care for injured superheroes at special clinics? Sure, there are some medical doctors who are superheroes, but you can't ask everyone to go to them.