We've known for a long time that for instance road noise causes health issues. I don't see road noise being all that different from white noise. Outside of the

We've known for a long time that for instance road noise causes health issues. I don't see road noise being all that different from white noise. Outside of the dump truck at 5AM, it's not so loud as to cause damage http://en.wikipedia.org/wiki/Noise_health_effects http://en.wikipedia.org/wiki/Noise_health_effects http://en.wikipedia.org/wiki/Roadway_noise http://en.wikipedia.org/wiki/Roadway_noise