Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Hereditary sensory neuropathy type 1 ?
    ### Response:
    Hereditary sensory neuropathy type 1 (HSN1) is a neurological condition characterized by nerve abnormalities in the legs and feet. Many people with this condition have tingling, weakness, and a reduced ability to feel pain and sense hot and cold. Some affected people do not lose sensation, but instead feel shooting pains in their legs and feet.
    