Ninety-year-old Jack goes to his doctor for a check-up. A few weeks later, the doctor sees him in the streets with a gorgeous, much younger woman on his arm.

“You’re really doing well, aren’t you?” he tells the elderly man.

Jack replies, “Just doing what you said Doctor: Get a hot mama and be cheerful.”

“No,” says the doctor. “I said,”You’ve got a heart murmur – be careful.”