1. Don't become an alcoholic
Unless you hate you liver, love the color yellow and want to puke blood.
2. Don't be a smoker
Unless you want to look 75 when you're 55 or enjoy COPD/lung cancer/O2 machines.
3. Don't get old
Yes, this is unavoidable. But a major cause of problems
4. Wear your seatbelt
Unless you enjoy superman-ing out of your windshield
5. Don't ride motorcycles
There is no good way to crash one and you will do major damage. On the plus side you may be a great organ donor.
6. Don't get fat
Hypertension and diabetes suck. HTN can give you a stroke and DM can kill your kidneys
7. Don't play Russian Roulette
You have a 1 in 6 chance of shooting yourself, this chance increases if you have been drinking with your buddies.