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One of the first known prosthetics was a wooden and leather toe found on an Egyptian mummy that dates to 950-710 B.C.
Source: University of Manchester30+
Temporomandibular disorders (TMDs) include more than 30 conditions that cause pain and dysfunction in the jaw joint and muscles that control jaw movement.
Source: National Institute of Dental and Craniofacial Research
“Severe” hearing loss is the ability to only hear sounds once they are at least 71 to 90 decibels (for example, a vacuum cleaner or alarm clock). “Profound” hearing loss is the ability to only hear sounds at least 91 decibels (such as a subway, passing motorcycle, or gas lawnmower).
Source: American Speech-Language-Hearing Association
Red blood cells that are "sickle" shaped block blood flow through the body, causing recurring pain episodes.
Source: National Heart, Lung, and Blood Institute
When both parents have sickle cell trait, they have a 25% (1 in 4) chance of having a baby with sickle cell disease with each pregnancy.
Source: Sickle Cell Disease Association of America, Inc.
Psoriasis may be triggered by stress, injury to the skin, cold weather, illness (if it affects the immune system), allergies, or certain foods and alcohol.
Source: National Psoriasis Foundation
Hearing loss affects approximately 37.5 million people in the United States ages 18 years or older. One in three people ages 65 to 74, and nearly half of people ages 75 and older have hearing loss.
Source: National Institute on Deafness and Other Communication Disorders
Epigenetics, epəjən'ediks/ (noun): the study of changes in organisms caused by modification of gene expression rather than alteration of the genetic code itself
Source: National Institute of Environmental Health Sciences
Per- and polyfluoroalkyl substances (PFAS) have been used in consumer products around the world since about the 1950s.
Source: National Library of Medicine