Vitamins linked to slower age related hearing loss in elderly women
A study of 55 women aged 60 to 71 found impaired hearing correlated with lower vitamin B-12 and folate levels. Normal hearing participants consumed roughly twice as much B-12 and folate, suggesting nutrition may influence age related hearing decline. Further research aims to develop dietary guidance.
MENTIONED IN THIS ARTICLE
American Journal of Clinical Nutrition
Mary Ann Johnson
Robert J. Nozza
University of Georgia
Athens
Nocturnal butterflies gain wing ears to outpace bats
Researchers Jayne Yack and James Fullard report that the Hedyloidea group, including Macrosoma heliconaria on Barro Colorado Island, evolved ears on their wings enabling ultrasound detection. When exposed to bat echolocation, these butterflies dive and speed up by about 400 percent to evade predation, supporting bats as a driving evolutionary force and linking hedylids to modern butterfly groups Papilionoidea and Hesperioidea.
MENTIONED IN THIS ARTICLE
Nature
Jayne Yack
Carleton University
James Fullard
University of Toronto
Yack
Fullard
Inner ear disorder linked to sudden falls in elderly patients
A study presented at the American Academy of Neurology meeting finds that unexplained sudden fall attacks in adults over 55 can stem from inner ear disorders such as Meniere's disease or delayed endolymphatic hydrops. Surgery cured vertigo and falls in five patients, with high success for complete hearing loss cases and non surgical injections as alternatives.
MENTIONED IN THIS ARTICLE
American Academy of Neurology
San Diego
Gail Ishiyama
Ucla School of Medicine
Los Angeles
Meniere
Ishiyama
Manatees' Hearing Limits May Hinder Boat Avoidance
A Florida Atlantic University study shows manatees hear best around 17 kilohertz with a 50 decibel threshold, while low frequency boat motors around 2 kilohertz are often inaudible. Researchers trained two captive manatees to a hearing test using tones and lights to map sensitivity and hope high frequency beacons on motors alert them.
MENTIONED IN THIS ARTICLE
Edmund Gerstein
Florida Atlantic University
Boca Raton
Gerstein
Stormy
Dundee
Whitlow Au
University of Hawaii
Manoa
Also Mentioned on This Page
By Hazel Inglis
HearingCenterOnline.com
the Journal of the Acoustical Society of America
Ford
Bendix and
CenTer
Midway Blvd
Detroit Road
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