Without salt, life itself would not be possible. According to Dr. David Brownstein, salt, like iodine, is another badly misunderstood yet essential element. In his holistic medical practice, Dr. Brownstein finds deficiencies in these essential elements are often the root causes of maladies that conventional medicine only treats symptomatically with drugs. In the final episode of this ground-breaking four-part mini-series, Dr. Brownstein delves into the workings of the holistic approach, touching upon such other typical deficiencies as B12 and Selenium, the value of a good diet, the applications of ozone therapy, and the importance of simply drinking enough water