👉 In medicine, a hereditary disease that affects the nervous system, characterized by difficulty with coordination or movement and often associated with a lack of muscle strength. This condition is typically inherited from an affected parent and can be caused by mutations in genes that control certain neurotransmitters or hormones. Hereditary dysplasia of the nerves (HDN) is one such example, where these conditions are often associated with a specific type of hereditary neuropathy characterized by decreased nerve conduction velocity.
