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Why does the brain remember dreams?

Some people recall a dream every morning, whereas others rarely recall one. A team led by Perrine Ruby, an Inserm Research Fellow at the Lyon...

Accentuating the positive memories for sleep

Sleep plays a powerful role in preserving our memories. But while recent research shows that wakefulness may cloud memories of negative or traumatic events,...

Scientists uncover ‘time for bed’ molecules

Animals lacking molecules called cryptochromes have abnormal sleeping patterns because their internal biorhythms are disrupted. New research from scientists at Stanford University, the University of North Carolina and SRI International published in the open access journal, BMC Neuroscience shows that mice lacking these molecules also respond differently to sleep deprivation. This suggests that cryptochromes are also involved in sleep homeostasis, the process by which we feel tired after we have been awake for a long time.

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