human life span [if you havent read genisis you wont know what im talking about]

ok i dont want some Athiest thoing scince stuff in my face this is for christains plz and if you read this and your a athiest dont give me your 'thats not possible crap' this is for belivers its the faith section not the scince section.

 in genisis it states that humans live to be many hunderds of years old. do you belive this? why?

[im not byis to either im asking your opineon]