Navigable waters of the United States are those waters that are subject to the ebb and flow of the tide and/or are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.
The Signs & Symptoms of Friedreich's Ataxia are: 1  loss of coordination (ataxia) in the arms and legs. 2  fatigue - energy deprivation and muscle loss.  vision impairment, hearing loss, and slurred speech.
Friedreich Ataxia (FRDA) What is Friedreich ataxia? Friedreich ataxia (FRDA) is a rare genetic disease that causes neurological and movement problems. The onset of this disorder is typically between the ages of five and 15 years. At first, the patient may show difficulty moving and slurred speech.