My 93 year old Grandfather has been sucking welding fumes, asbestos, smoker (quit), chew tobacco (still occasional), 3 eggs 4 or 5 days a week + lots of meat, 3 fingers of Wild Turkey in the evening, and he still is kicking butt and taking names.
The 87 year old one did 32 years military (Navy and Marines) and came out of a POW camp at 86 pounds and still gets in a round of golf occasionally.
Please God... let me have a good dose of those genes!!!