Here's something to think about:

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 sixty-something.) 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, wine or hard liquor?"
"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, boating, sailing, hiking, or bicycling?"
"No, I don't," I said.
He asked, "Do you gamble, drive fast cars, or have a lots of sex?"
"No," I said...
He looked at me and said, "Then, why do you even give a shit?”