My bet is both your aunt and grandma passed before reaching today's average age. I also appreciated the ready availability of terpin hydrate/codeine and it's associated side effects but there's a reason I can't walk into a pharmacy and buy it today like I could then - there's also a reason I've (so far) outlived both my parents and 3 of my 4 grandparents. Grandma was a tough old bird, made it to 104
I have neither the expectation nor the desire to follow in her footsteps.