Huntington’s disease is a progressive neurodegenerative dise…

Huntington’s disease is a progressive neurodegenerative disease in which symptoms typically appear starting in middle age. It is inherited in an autosomal dominant fashion. A man has an aunt with Huntington’s; the aunt is his mother’s sister.  The man’s mother died in a car accident when she was fairly young, before symptoms of the disease typically manifest.  Before having children of his own, should the man be tested for Huntington’s? Why?