Transcription: They break down water to release hydrogen, in the case of sodium and potassium so violently that there is spontaneous combustion. Sodium and potassium are also two important elements in the body. They control the electrical impulses in nerves. If the delicate balance between these two elements becomes disrupted in the brain, the result may be the disease manic depression. The third element in this triad, one that's not usually present in the body, can restore the balance.
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