Yup, my grandmother worked and drove a vehicle until she was 94. That cancer center is full of people without a smoke-related issue as well. Those who are stupid enough to smoke a pack a day or more usually end up there or in the ground pretty quickly. Just like those fat, fat, fatties who could not employ moderation either and have a chest-brusing coronary and wind up in the ground at a ripe young age.
When all is said and done however, your genetic makeup will determine your number of days on this planet as long as you are able to avoid car accidents, jealous husbands, etc.