Avazzia 

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There have been studies of the use of Electrical stimulation over the centuries. One of the earliest known uses was by the Egyptians over 2000 years ago. They discovered the electrical properties in fish and that certain fish emit an electrical impulse. They used that stimulation to treat pain and ailments such as gout.  In the 18th century Luigi Galvani of Italy experimented with passing an electrical current through the spine of a frog, resulting in the contraction of the frog’s muscles, showing that muscle contractions could be controlled through electronic stimulation. There are a great many pioneering giants down through the ages who ‘saw before their time’.