A 75 year old woman went to the doctor for a checkup. The doctor told her she needed more cardiovascular activity and recommended that she engage in sexual activity three times a week.

A bit embarrassed, she said to the doctor. "Please tell my husband."

The doctor went out into the wating room and told the husband that his wife need sex three times a week.

The 80 year old husband replied, Which days?"

The doctor answered, "Monday, Wednesday and Friday would be ideal."

The husband said, "I can bring her on Monday and Wednesday, but on Fridays she'll have to take the bus."