Old Morris

Morris, an 82 year-old man, went to the doctor to get a physical.
A few days later, the doctor saw Morris walking down the street with a gorgeous young woman on his arm.
A couple of days later, the doctor spoke to Morris and said, 'You're really doing great, aren't you?'
Morris replied, 'Just doing what you said, Doc: 'Get a hot mamma and be cheerful.''
The doctor said, 'I didn't say that. I said, 'You've got a heart murmur; be careful.'