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There was, and still is, a lot of speculation about what caused Beethoven's hearing loss. As with most medical conditions, there can be influences from genetic and environmental factors ...
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 ]
Autism spectrum disorder [a] (ASD), or simply autism, is a neurodevelopmental disorder "characterized by persistent deficits in social communication and social interaction across multiple contexts" and "restricted, repetitive patterns of behavior, interests, or activities". [11]
The amygdala, cerebellum, and many other brain regions have been implicated in autism. [15]Unlike some brain disorders which have clear molecular hallmarks that can be observed in every affected individual, such as Alzheimer's disease or Parkinson's disease, autism does not have a unifying mechanism at the molecular, cellular, or systems level.
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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However, the squamous of Beethoven’s occipital is also listed among the cranial elements recovered during Beethoven’s second exhumation in 1888, and salient features of the squamous of Beethoven’s occipital (e.g. the curvature of the squamous on the horizontal plane; the overhang of the occipital) are likewise described in this same 1888 ...
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