The disease evolves differently in different people. In general, those diagnosed at a younger age or with longer GAA triplet expansions tend to have more severe symptoms. Congestive heart<unk> ilure and abnormal heart rhythms are the leading causes of death, but people with fewer symptoms can live into their 60s or older.
Friedreich's ataxia
Spinocerebellar ataxia type 6
Stratton Parker syndrome
Autosomal recessive cerebellar ataxia type 1
Spinocerebellar ataxia type-13
Sandhoff disease
Jokela type spinal muscular atrophy
Parkes Weber syndrome