«Because brain cells release amyloid beta
during activity, we think if the brain cells can't
rest the way they're supposed to and get that
deep sleep, they produce a relative excess of amyloid,» Dr. Yo - El Ju of Washington University, an author of that study, told Reuters.
They strengthened the slow oscillations of neurons
during so - called non-rapid-eye-movement
rest, applying 0.517 milliampere at the 0.75 hertz frequency, which most closely mimics the brain's signal
during such
deep sleep.