Longgevity yes- immortality no, that's NQS.

I have a very personal interest in longevity, my mother is approaching 96. Still has darkish hair and her own teeth!! Most of her family (especially the females) lived to at least the late 80s, and one of my aunts made it to 101, so I have no difficulty assuming that there is a genetic component to living longer than normal, and that should probably give some sort of protection against cancer and heart disease, as thay are the greatest killer diseases... however that is NOT immortality.