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An analysis of locks of Ludwig van Beethoven’s hair suggest he had lead poisoning. It may have contributed to chronic ailments, deafness and — ultimately — his demise.
Many causes of autism, including environmental and genetic factors, have been recognized or proposed, but understanding of the theory of causation of autism is incomplete. [1] Attempts have been made to incorporate the known genetic and environmental causes into a comprehensive causative framework. [ 2 ]
Beethoven is known for being one of the most famous musicians to have suffered from hearing loss. But, what do we actually know about it? Join us as we explore everything we know—and don't ...
In human development, muteness or mutism [1] is defined as an absence of speech, with or without an ability to hear the speech of others. [2] Mutism is typically understood as a person's inability to speak, and commonly observed by their family members, caregivers, teachers, doctors or speech and language pathologists.
Developmental Language Disorder (DLD) is identified when a child has problems with language development that continue into school age and beyond. The language problems have a significant impact on everyday social interactions or educational progress, and occur in the absence of autism spectrum disorder, intellectual disability or a known biomedical condition.
A new analysis of Beethoven’s hair has shown the composer experienced lead poisoning toward the end of his life. He died at age 56 in 1827. Tests revealed incredibly elevated levels of lead, as ...
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Autism is associated with several genetic disorders, [4] perhaps due to an overlap in genetic causes. [5] About 10–15% of autism cases have an identifiable Mendelian (single-gene) condition, chromosome abnormality, or other genetic syndrome, [6] a category referred to as syndromic autism.