Tower of God Wiki talk:Q&A/@comment-5759697-20130405151549/@comment-6122870-20130407173005

Depends on shinsoo and contracts with guardians. With contracts given from the guardians some of those living in the universe are immortal and with shinsoo many people are living way above what we consider a normal lifespan. Remember a few years to us is like a few days or months to them.