Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Friedreich ataxia ?
    ### Response:
    Friedreich ataxia is a genetic condition that affects the nervous system and causes movement problems. People with this condition develop impaired muscle coordination (ataxia) that worsens over time. Other features of this condition include the gradual loss of strength and sensation in the arms and legs, muscle stiffness (spasticity), and impaired speech.
    