Health

Poor sight causes people to overstep the mark

People with vision impairment are more cautious when stepping over obstacles when walking—but increase their risk of falls, according to a new study published in the journal Scientific Reports.

Cardiology

Model predicts six-month post-AMI mortality for older adults

(HealthDay)—A newly developed model has good discriminatory ability for six-month post-acute myocardial infarction (AMI) mortality, according to a study published online Dec. 10 in the Annals of Internal Medicine.

Diseases, Conditions, Syndromes

Tinnitus: Scale of hearing damage for music industry workers revealed

Hearing loss and tinnitus (ringing, buzzing or whistling noises in the absence of any external sounds) are serious problems for music industry workers. The conditions can affect musical standards, limit employment and damage ...

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Hearing impairment

A hearing impairment or deafness is a full or partial decrease in the ability to detect or understand sounds. Caused by a wide range of biological and environmental factors, loss of hearing can happen to any organism that perceives sound. "Hearing impaired" is often used to refer to those who are deaf, although the term is viewed negatively by members of Deaf culture, who prefer the terms "Deaf" and "Hard of Hearing".

Sound waves vary in amplitude and in frequency. Amplitude is the sound wave's peak pressure variation. Frequency is the number of cycles per second of a sinusoidal component of a sound wave. Loss of the ability to detect some frequencies, or to detect low-amplitude sounds that an organism naturally detects, is a hearing impairment.

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