Perhaps I am misunderstanding your statement.
That everything which born have to die as well.
It sounds like you are implying that we as humans have to die as in we must die in order to enjoy life now.
This simply isn't true because you can potentially die however medical advances prevent death and you still enjoy life. If you feel we must die then perhaps you would not be so quick to accept help for your own life to continue? Life is the great indulgence after all.
So in the future if they developed a way to prevent heart attacks then why wouldn't you accept that medical benefit in order to not die? Would you really enjoy life any less? I doubt it.