Imagine waking up with no memory of two-thirds of your life. Image Credit: CC BY 2.0 Allan Ajifo
A woman from Louisiana forgot her entire adult life after suffering from a sudden and extreme bout of memory loss.
56-year-old grandmother Kim Denicola had been walking to her friend's car after attending a bible class at her church when she experienced a sudden, sharp headache and passed out on the spot.
When she awoke in hospital a short time later, the last 40 years had been wiped from her memory.
As far as she was concerned the year was 1980, she was almost 18 years old and Reagan was in the White House. She had no memory of her husband, her children, her grandchildren, her family business or anything that had happened to her over the last four decades.
It was as though someone had flicked a switch in her brain and wiped it all out.
Doctors eventually diagnosed her with a condition known as 'transient global amnesia' which is typified by a temporary loss of recent memory. In Kim's case however, her memories haven't returned.
A news report featuring interviews with Kim and her family can be viewed below.