Out-of-sync brain waves may explain why we get forgetful as we age

New research finds the timing of brain waves we make while sleeping may impact memory. Our brains don't rest when we sleep. Electrical waves ripple through our noggins as our neurons talk to each other. Now, researchers have shown that when these waves don't interact properly, we can lose our long-term memory. The work may help explain why older adults are so forgetful, and it could lead to new therapies to treat memory loss.