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.
Friedreichâs ataxia (FA) is a debilitating, life-shortening, degenerative neuro-muscular disorder. About one in 50,000 people in the United States have Friedreich's ataxia. Most individuals have onset of symptoms of FA between the ages of 5 and 18 years.