Will I live to see 80?

I recently picked a new primary care doctor. After two visits and exhaustive Lab tests, he said I was doing 'fairly well' for my age. (I am in my mid 50s.) A little concerned about that comment, I couldn't resist asking him, 'Do you think I'll live to be 80?



'He asked, 'Do you smoke tobacco, or drink beer or wine?'



'Oh no,' I replied. 'I'm not doing drugs, either!'



Then he asked, 'Do you eat rib-eye steaks and barbecued ribs?



'I said, 'Not much... my former doctor said that all red meat is very unhealthy!'



'Do you spend a lot of time in the sun, like playing golf, sailing, hiking, or bicycling?'



'No, I don't,' I said.



He asked, 'Do you gamble, drive fast cars, or have a lot of sex?'



'No,' I said.



He looked at me and said, 'Then, why do you even give a shit?'