Yeah- life's lottery is just amazing how it works sometimes, huh?
There are those who smoke, drink, over-eat, and live fast lives who live 'til they're a hundred! Then some poor near-perfect soul can be struck-down and taken away when barely into adulthood... Or a child... Sometimes it all makes a guy really wonder.
The key is to take as many steps as we all can to do more of what we know to be right- whatever that may be for each of us, individually. And the truth is- we all battle an addiction of some sort- it might not be booze or drugs- but it might be food, exercise, spending, gambling or whatever- and all of these come w/ their potential health risks and stress factors.
For a chuckle: I'm reminded of Redd Foxx once said- "All these joggers and health-nuts are gonna feel ridiculous one day as they lay in bed dying of absolutely nuthin'!"