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.

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, '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 ****?