Rest.
After the brain begins to regain the volume of its lost grey matter, which may happen a week or two after detox, healing begins. It may take months or longer to restore the white matter in the prefrontal cortex and other parts of the brain.
Sleep is essential for the brain's healing. Periods of rest cannot be used in its place to increase performance, according to the study's principal investigator, Professor Christoph Nissen, who is currently employed with the University of Bern in Switzerland. "The brain's state while sleeping is distinct, "Added he.
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