The part played by the brain in memory makes it easy to understand why

we find it so impossible to memorize or to recall when the brain is
fatigued from long hours of work or lack of sleep
The part played by the brain in memory makes it easy to understand why
we find it so impossible to memorize or to recall when the brain is
fatigued from long hours of work or lack of sleep. It also explains the
derangement in memory that often comes from an injury to the brain, or
from the toxins of alcohol, drugs or disease.