Not once scholars have argued that deep sleep improves memory. However, until recently, they did not know exactly how it happens, reports The Daily Mail.
Now, American experts have clearly shown, whereby a good sleep promotes learning skills. But with the lack of sleep, as it turned out, the risk of Alzheimer's disease. During research with rodents, researchers analyzed the motor cortex of the animals when they normally slept 7 hours or suffer from lack of sleep and while learning to walk on a rotating rod. The learning process itself leads to the formation of dendritic spines that help transmit electrical signals from one neuron to another. But that was only in animals deprived of sleep. turns out, a good sleep helps to strengthen and consolidate the newly formed memories. According to the University of New York, different tasks, mastered the brain, lead to the fact that synapses are formed (joints neurons) in different appendages on the same neurons. So, the brain cells "digest" the new information during sleep. And it happens in the phase of slow wave sleep, characterized by a lack of dreams. That is, the brain cells that are activated during the learning process itself, has reactivated during sleep. If this process is disrupted, the dendritic growth is not happening.