"I am 78," the man said.
"78!" remarked the doctor. "How do you stay so healthy? You look like a 60-year old."
"Well my wife and I made a pact when we got married that whenever she got mad, she would go into the kitchen to cool off and I would go outside for a walk to settle down," the man explained.
"What does that have to do with it?" asked the doctor.
"I've pretty much led an outdoor life."