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 just turned 60.)
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 ?