Why is the life expectancy of Native Americans in reservations of forty eight years?

Question

http://www.nativevillage.org/Messages%20from%20the%20People/Hidden%20Away%20in%20the%20Land%20of%20Plenty.htm

Answer 1

though you may think that there is a lot wrong with life on the rezz,ask yourself why are native people there,who,s fault is it of such living conditions...think really hard,you already know the answer.