An old man went to the doctor and said, "Doctor, I have trouble breathing when I run or walk up stairs."
The doctor examined him and said, "It sounds like you might have a heart condition. I'll prescribe some medication and we'll see how you feel after a few weeks."
A few weeks later, the old man returned to the doctor. The doctor asked, "How did the medication work out for you?"
The old man replied, "Well, doc, I don't know what you gave me, but it works! I stopped running and climbing stairs! Now I just sit around all day!"
The doctor looked at his watch and sighed. "Alrighty... 5 minutes left..."