Your book will also have a post on each site for at least a year for long term exposure. (authoradnetwork.com)
The research is sound, and shows that with long term exposure to the stress, the brain starts to function poorly. (sleeptrainmybaby.com)
The authors point out that repeated long term exposure to industrial noise has been clearly linked to hearing damage, including an inability to hear the full range of sound. (sciencedaily.com)