A new survey from New York reveals the effects on human health of noise of all sorts. Noise is now second only to air pollution in its adverse effects on human health. Hypertension and cancer are two of the potentially fatal illnesses that excessive, non-stop music – which triggers a fight-or-flight response – can cause. And, as the report in Harpers Bazaar magazine points out, you can no longer hope to find a refuge in bars, hotels, restaurants or even bookshops, as almost all are filled with piped music!
‘Loud noise correlated with high-stress events that could damage tissue: thunder, animal roars, screams, or war cries,’ says Bart Kosko, Ph.D., a professor of electrical engineering at the University of Southern California and the author of Noise. So, in response to rare but loud threats, we evolved to spurt out adrenalin, cortisol, and other stress hormones—chemicals that jacked up our bodies so we could fight or flee. A constant gush of stress hormones actually restructures the brain, contributing to tumor development, heart disease, respiratory disorders, and more. And of course, our hormonal endocrine systems haven’t had time to learn that car stereos aren’t out to get us. ‘Today we regularly get similar stress-hormone surges from car alarms, ringing phones, police sirens, leaf blowers, jackhammers, and amplified voices.’
The problem is of course global and not confined to the USA.