by Arline L. Bronzaft, Ph.D., Board of Directors, GrowNYC, and Co-founder, The Quiet Coalition
I am a regular reader of the New York Times Tuesday Science section and was delighted to see two references to sound in the In Brief Section by Nicholas Bakalar on November 3rd (print version). In his brief titled “Noise May Raise Dementia Risk” Bakalar cites a study linking noise to increased risk for Alzheimer’s Disease and Dementia. The authors, conducting a study on aging, looked at residents living in communities, both quiet and noisy, and found that community noise level resulted in a higher likelihood of cognitive impairment, as well as a risk for Alzheimer’s disease. The lead author, Jennifer Weuve, could only hypothesize about the connection but she suggested that excessive noise can result in sleep deprivation, hearing loss and changes in blood pressure—“all of which are associated with an increased risk for dementia.”
With so many people living longer lives today, this study suggests further research into the potential impact of long-term noise on one’s mental health. However, as stated numerous times before, there is enough evidence on the hazards of noise to our mental and physical health to warrant lessening noise pollution NOW.
The second brief is titled “Children: Not Picky About Lullabies” and cites a study led by Bainbridge and Bertolo in which the researchers found that lullabies, sung in many different languages and from different cultures, relaxed young infants. That infants can be calmed by songs from different languages, different cultures and different voices may also indicate that humans at the start do not center on differences amongst groups but upon similarities, namely the comforting sounds emanating from their voices.
Dr. Arline Bronzaft is a researcher, writer, and consultant on the adverse effects of noise on mental and physical health. She is co-author of “Why Noise Matters,” author of “Listen to the Raindrops” (children’s book illustrated by Steven Parton), and has written extensively about noise in books, encyclopedias, academic journals, and the popular press. In addition, she is a Professor Emerita of the City University of New York and Board member of GrowNYC.