Is LFN harmful to health?
In cases where a noise can be found that is responsible for the disturbance the levels of sound are typically around the threshold of hearing. Sounds at this level do not contain anything like enough energy to cause any physical harm. So low frequency noise in itself is not harmful. If a person starts to become stressed or to lose sleep for example then their health might be affected. If so, the effect is indirect (for example due to the lack of sleep) rather than being a direct effect of the sound itself. In, other words, if there are any health effects they are the result of the reaction to the sound rather than the sound itself. This is a very important distinction because belief and cognition plays a role in the sufferer’s reaction.
