To the extent that "relaxing" online is possible, YouTube is full of relaxing ... "Relax 8 Hours-Relaxing Nature Sounds-Study-Sleep-Meditation-Water Sounds-Bird Song," has become a famous source ...
To induce sleep (a delta brainwave of 5 hertz), a person ... and flutes are very effective at relaxing the mind even when played moderately loud. Sounds of rain, thunder, and nature sounds may also be ...