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Posts: 1,456
Reply with quote  #1 
The Academy just issued this statement:

"Infant sleep machines can be used to mask environmental noises in busy households or to provide ambient noise to soothe an infant during sleep, but they can also contribute to babies’ hearing loss. In an April 2014 Pediatrics study, “
Infant Sleep Machines and Hazardous Sound Pressure Levels,” published online March 3, the maximum noise levels of 65 sounds in 14 different infant sleep machines were tested at three distances: 30 centimeters (to simulate placement on a crib rail), 100 centimeters (simulating placement near a crib), and 200 centimeters (to simulate placement across the room). All 14 machines exceeded 50 dBA, the current recommended noise limit for infants in hospital nurseries, and all but one exceeded the recommended noise limit even from 200 centimeters away. The findings also determined that regular exposure to white noise through an infant sleep machine on a nightly basis can affect hearing, speech, and language development. Even though the maximum output levels were measured in this study, the authors encourage parents to move infant sleep machines farther away than 200 centimeters and to lower the volume to protect infants’ hearing. - See more at:


"Yesterday is ashes, tomorrow is wood, only today does the fire burn brightly"

Posts: 1,951
Reply with quote  #2 
Yeah, that's really surprising, and disturbing! I saw a story about that on the news just recently. Very glad this information is getting out there.

Posts: 29
Reply with quote  #3 
Thank you, Dan for posting this information.  I just read a book by Katherine Bouton called "Shouting Won't Help,  Why I - and 50 other million Americans Can't Hear You"?.  The author, a former New York Times editor, suffered unexplained hearing loss in her 30s that worsened with age. She discusses how vulnerable the auditory system is as it's developing (possibly until a person reaches around 20 years old).  It makes me realize the incredible risks teenagers take going to loud rock concerts and sporting events.  She also discussed the incredible effort being made to regenerate human hair cells through stem cell research and other techniques.  Excellent book for those with ear issues.
Ken Devore
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