Talk:Ken Kaneki/Synopsis/@comment-31866807-20171003154353/@comment-116.15.37.131-20171005125911

His body is human and human cells have a limit to how much they can regenerate, which are our telomeres, they shorten whenever they heal our bodies more which causes us to age faster. Kaneki has been in so many fights to the point where his body can no longer heal itself anymore unless he cannabilises which could lengthen his telomeres again