«You don't pick up anything in terms of
ambient noise,» says
study coauthor John Rogers, a materials scientist and bioengineer at Northwestern University in Evanston, Ill. «You can be next to an airplane jet engine.
This list of
ambient sounds like relaxing, white
noise, nature, country, river, rain sounds will surely unwind; for school - going children, they can increase their attentiveness to
studies and perform better in school and examinations.