Longevity

I recently went to my new doctor. After two visits and exhaustive Lab tests, he said I was doing 'fairly well' for my age.
A little concerned about that comment, I asked 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, 'No, 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"