

Other research has shown that brain levels of beta-amyloid decrease during sleep. Beta-amyloid is renowned for accumulating in the brains of patients with Alzheimer's disease. The scientists also reported that the glymphatic system can help remove a toxic protein called beta-amyloid from brain tissue. The system is managed by the brain’s glial cells, and so the researchers called it the glymphatic system.

Cerebrospinal fluid, a clear liquid surrounding the brain and spinal cord, moves through the brain along a series of channels that surround blood vessels. Maiken Nedergaard and her colleagues at the University of Rochester Medical Center recently discovered a system that drains waste products from the brain. However, the mechanisms behind these sleep benefits have been unknown.ĭr. Lack of sleep impairs reasoning, problem-solving, and attention to detail, among other effects. Scientists and philosophers have long wondered why people sleep and how it affects the brain. The results point to a potential new role for sleep in health and disease. Maiken NedergaardĪ mouse study suggests that sleep helps restore the brain by flushing out toxins that build up during waking hours. Cerebrospinal fluid (blue) flows through the brain and clears out toxins through a series of channels that expand during sleep.
