User blog comment:Ichigosama/Similarities/@comment-5551986-20130730234516/@comment-10961564-20130731094140

well Aizen was a little too good at the start and i suspected him to be something else....Yhwach isn't your normal day Quincy, he's their monarch...

When someone wakes up from a state when they were like frozen, their body is as young as it was, no matter how much time has passed..moreover, Yhwach looks too young to be old enough to die a natural death