After his exam the doctor asked the elderly man: "You appear to be in good
health. Do you have any medical concerns you would like to ask me about?

"In fact, I do," said the old man. "After I have sex with my wife, I am
usually cold and chilly, and then, after I have sex with her the second...
time, I am usually hot and sweaty.

" Later, after examining the man's elderly wife, the doctor said:
"Everything appears To be fine. Do you have any medical concerns that you
would like to discuss with me?

She replied that she had no questions or concerns. The doctor then said to
her: "Your husband had an unusual concern. He claims that he is usually
cold and chilly after having sex with you the first time, and then hot and
sweaty after the second time. Do you know why?

"Oh that crazy old fart," she replied. "That's because the first time is
usually in January and the second time is in August."