That's not to say that no has been cured but, there is absolutely no scientific evidence that there is a proven cure. Other causes may be the result of drug usage which is a common cause of Synapse XT. The sounds that are usually heard with Synapse XT are ringing in the ears, hissing and roaring noises in the ears or whistling. If you focus on what you truly want out of life, like happiness and success, you'll get more of that.