I think human's immortality life is impossible.There is no medicine in the world which will make us immortality.To achieve immortality many pursuits and theories are needed.Many have achieved immortality in history,but there is no explanation for this.
Yes, it certainly seems like humans are far too fragile to be immortal. I definitely think that life expectancy will continue to increase, but there must be some limit. Technology is improving very quickly. Modern medicine has allowed us to eliminate many of the diseases that used to kill millions. Even now, there are many cases when people die "of old age". Doctors and coroners are literally unable to determine the cause of death. I'm sure this will still happen, even when we eliminate diseases like cancer.