You'll need to include this. 1  address. 2  credit. 3  mailing. Mailling.  payment.
You're both right. Genetics play a mild role in major depression (a bigger role in bipolar disorder). Genetics may serve as a predisposing factor to depression, but the evidence is growing that depression has a great deal to do with the ongoing and repetitive interactions within the family.
Donate to the National Ataxia Foundation. Causes of Ataxia. The hereditary ataxias are genetic, which means they are caused by a defect in a certain gene that is present from the start of a person's life. All of us have genes that have little mistakes or variations but most of these do not cause disease, they are called mutations.