Hello Class. We have all had sex we would rather forget but I am going to tell about a woman in the US who genuinely did forget it – 10 minutes afterwards. She hadn’t been drugged or attacked, in fact she had just made passionate love with her husband. It turns out she had suffered a memory lapse as the result of a rare condition.

Experts have recorded cases of amnesia that have directly resulted from sex? Perplexed? Let me explain. A middle aged couple from the US were shocked to discover first hand, of a neurological disease where patients retain knowledge of their own identity, but are unable to ascertain the time of day, or even the year for that matter.

No other symptoms are displayed. The condition is known as transient global amnesia and causes patients to lose short term memory. Perhaps the ideal excuse for forgetting bad sex? No, jokes aide, did you know that the condition predominantly effects people over 50? The condition commonly takes hold after a great deal of physical exertion (e.g. during sex). It can also occur after vigorous exercise or when somebody is suddenly immersed in freezing or hot water.

Expert in the field; Dr Louis Caplan claims: The unifying thing about each of them is they produce a sudden and significant change in blood flow,". This can of course happen during sex. The female in question is reported to have repeated the questions “where am I” every 10 minutes for a number of hours, clearly displaying realisation for who she was and who her husband was, but now how she had arrived at the hospital.