Question: If you were immortal, would you still live a healthy lifestyle?
Answer: We can become immortal – acquiring a consciousness, perception of reality that is aware of an infinite, eternal reality unbound by the subjective coordinates of time, space, physical motion.
But this new consciousness, perception is disconnected from the state of the physical body, moreover it “stays alive” even after our biological body dies. So a “healthy, physical lifestyle” or the lack of it is completely irrelevant to our immortality.
The “healthy lifestyle” we need for immortality is building “healthy”, positive, selfless, unconditionally loving and serving interconnections with others. Our new, immortal life will be born in those connections.