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.
What Is It? Friedreich's ataxia is an inherited (genetic) disorder that causes certain nerve cells to deteriorate over time. In many cases, this disorder also affects the heart, certain bones and cells in the pancreas that produce insulin. The illness typically begins with difficulty walking.