It makes you dumberer
Or at least, not as smart.
Even if you've heard about how lack of sleep interferes with memory and brain function before, if you're low on sleep, you might need the reminder. Because, you know, lack of sleep and memory problems.
Dr. Vincent Passarelli, a clinical psychologist who works with clients regarding sleep disruptions, explains the phenomena, saying, "Research has shown sleep's 'reset' for our brain is necessary to prune neural circuits. Synaptic pruning is similar to gardening for the brain. It enhances neural connections by clearing away less-needed circuits and making room for more efficient ones to grow. Research has shown it to be related to increasing brain connectivity, retention of new information and memories, as well as eliminating certain proteins and plaques shown to be correlated with Alzheimer's and dementia."