In the Media

Prof. Laura Lewis discusses her research exploring how the flow of cerebrospinal fluid (CSF) in your brain while you sleep can help eliminate “waste," like “excess proteins and other molecules that can be toxic, if not removed,” reports Lydia Denworth for Scientific American. “Lewis found that CSF also flows when people are awake but less effectively,” explains Denworth. “Lewis’s conclusion: sleep, a state that is essential for human health, has a distinct pattern of CSF flow—and that pattern changes as the stages of sleep shift.”