Sex is a trigger for a baffling condition called transient global amnesia in which the patient loses their short-term memory.

(CNN) -- It was either mind-blowing or completely forgettable. Either way, Alice doesn't remember.

One August morning, Alice and her husband, Scott, had sex.

That's when things became confusing. Rather than appearing pleased, Alice, 59, seemed disoriented.

As they lay in bed, Scott (the couple asked that their last name not be used) flicked on the television, which was showing the Olympics. This perplexed Alice. "Is there an Olympics?" she asked. This was during the Michael Phelps mania, when the swimmer seemed to be everywhere.

"Are you sure there is an Olympics?" Alice asked again.

Scott recalled, "I saw that something was wrong, so I asked her, 'OK what day is it?' "

Alice appeared even more perplexed.

"Who's our president?" he quizzed.

"Bill Clinton," she answered. This was 2008.

Scott darted out of bed and called 911. The paramedics suspected a stroke and rushed the befuddled Alice to the emergency room.

http://edition.cnn.com/2009/HEALTH/11/04/transient.global.amnesia/index.html