The brain has a remarkable, virtually limitless capacity to astonish us with its mysteries

DURATION: 43:48
DISTRIBUTOR: ITV Global
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One tiny bit of damage to the brain can turn our world upside down. One small area malfunctioning can have bizarre and unpredictable consequences. This episode explores three syndromes that have played havoc with the lives of their sufferers, including a mum of four with no memory of her children growing up, a teenager who sleeps for months at a time, and a man for whom even a little emotion is a dangerous thing, as it sees him collapse to the floor up to sixty times a day.