A man celebrating his 100th birthday

A man celebrating his 100th birthday was asked by a reporter how he had managed to live so long:

The man contemplated that question and looked over at his wife.

She sat beside him and a small smile played around her lips.

He hesitated for a moment before he explained:

“Well, son, I got married when I was 21.

The wife and I decided that if ever we argued the loser should take a long walk to cool off.

So I guess I’ve benefited from 79 years of fresh air.