did studies of lack of sleep dement
A second study also suggests that if you sleep poorly, you're at increased risk for earlier onset of severe dementia. Sleep Loss Linked to 'Massive Brain Damage' The first study in question, published in the Journal of Neuroscience, found that sleep is necessary for maintaining metabolic homeostasis in your brain. Wakefulness is associated with mitochondrial stress, and without sufficient sleep, neuron degeneration sets in.