You might end up with a stroke or heart attack, be bedridden for months, shrink down and end up dying small and weak.
Or end up on dialysis for years.
The expectation is that one day you'll just lights out and it will all end instantly one day.
Going from 100 mph full of vigor in peak health to full stop.
The reality is you'll end up in a hospital hooked up to machines, a lingering, slow and painful death as your organs gradually shut down.
This is the end for most of us in any event.
You can delay it perhaps by healthy living.
Doctors are in the delaying business.