26/05/2022
"New research from Boston University suggests that
tonight while you sleep, something amazing will happen
within your brain.
Your neurons will go quiet. A few seconds later, blood
will flow out of your head. Then, a watery liquid called
cerebrospinal fluid (CSF) will flow in, washing through
your brain in rhythmic, pulsing waves
The study, published on October 31 in Science, is the
first to illustrate that the brain's CSF pulses during
sleep, and that these motions are closely tied with brain
wave activity and blood flow.
"We've known for a while that there are these electrical
waves of activity in the neurons," says study coauthor
Laura Lewis, a BU College of Engineering assistant
professor of biomedical engineering and a Center for
Systems Neuroscience faculty member. "But before
now, we didn't realize that there are actually waves in
the CSF, too!"
sleep clinic
