Cancer

This old man visits his doctor and after a thorough examination, the doctor tells him, "I have good news and bad news, what would you like to hear first?"

Patient says, "Well, give me the bad news first."

The doctor says, "You have cancer, I estimate that you have about two years left."

The patient goes, "That's terrible! In two years, my life will be over! What kind of good news could you probably tell me, after this?"

Doctor says, "You also have Alzheimer's. In about three months you are going to forget everything I told you."