As if you need another reason to worry. From The Daily Mail:
A ‘deaf generation’ exposed to constant noise may be losing the ability to hear as nature intended, a sound expert has claimed.
As a result people could be missing out on the positive effects from natural sounds that contribute to good health and well-being, research suggests.
Dr Kurt Fristrup, who has monitored sound levels in 90 US national parks including Yosemite, Grand Teton and the Grand Canyon, stressed that hearing is a ‘universal learning sense’ active even when we are sleeping or anaesthetized.
The guy has some interesting stuff to say here and here. Read–and then think about it.
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