[nazgul17]

From what I understand, whether you will struggle depends a lot on whether you eat well, sleep well, drink, smoke, and exercise.

My dad played futsal until the end (~70 yo, car accident, be was perfectly healthy otherwise); I met one of his classmates from school, he looked 20 years older, no exaggeration. My dad looked like he was barely 50.

Note: how old someone looks is very biased by their "generation", as people tend to drink and smoke less these days.