Published on June 16, 2024 at 9:47 p.m. / Modified on June 16, 2024 at 9:49 p.m.
It’s every student’s nightmare. The day before an important exam, is it better to line up the cans of red bull and continue studying until the early hours? Or is it better to capitalize on a good night’s sleep? Anyone who, after a sleepless night, has already experienced this feeling of interstellar emptiness in the face of an ordeal, knows something: lack of sleep can drastically reduce the retention of information.
A study conducted by the University of Michigan and published on June 12 in the journal Nature explains the reasons. Carried out on rodents, it shows that a crucial brain signal linked to long-term memory weakens in rats when they are deprived of sleep. Bad news: even a restful night of sleep after a restless night does not seem to be enough to restore this signal.
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