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A walker noticed an old lady sitting on her front step, so he walked up to her and said, "I couldn't help noticing how happy you look! What is your secret?"

"I smoke ten cigars a day,' she said. ' Before I go to bed I smoke a few cigarettes, and I like to drink a whole bottle of Jack Daniels each week. I eat lots of fast food and on weekends I pop pills. I never exercise."

"That's absolutely amazing! How old are you?"

"Twenty-four", she replied.

(Hat tip to Ray B)