It seems that noise, even without binaural beats, is good for your brain. A recent study showed that adults over age sixty could listen to pink noise synced to 1Hz brain waves deepens sleep and boosts memory. These same low-frequency Delta patterns appear in all of my sleep music.
Gentle sound stimulation—such as the rush of a waterfall—synchronized to the rhythm of brain waves significantly enhanced deep sleep in older adults and improved their ability to recall words, reports a new Northwestern Medicine study.
Deep sleep is critical for memory consolidation. But beginning in middle age, deep sleep decreases substantially, which scientists believe contributes to memory loss in aging.
After the sound stimulation, the older participants’ slow waves increased during sleep.