A 75 year old woman went to the doctor for a check-up. The doctor told her she needed more activity and recommended sex three times a week.

She says to the doctor, "Please, tell my husband."

The doctor goes out in the waiting room and tells the husband that she needs to have sex three times a week. The 80 year old husband replies, "Which days?"

The doctor says, "How about Monday, Wednesday and Friday?"

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