Studies at MIT and elsewhere are producing mounting evidence that light flickering and sound clicking at the gamma brain rhythm frequency of 40 hertz (Hz) can reduce Alzheimer’s disease (AD) progression and treat symptoms in human volunteers as well as lab mice. In a new open-access study in Nature using a mouse model of the disease, MIT researchers reveal a key mechanism that may contribute to these beneficial effects: clearance of amyloid proteins, a hallmark of AD pathology, via the brain’s glymphatic system, a recently discovered “plumbing” network parallel to…
